{"id":94206,"date":"2026-08-04T12:06:32","date_gmt":"2026-08-04T15:06:32","guid":{"rendered":"https:\/\/www.lawnstarter.com\/blog\/?p=94206"},"modified":"2026-08-04T12:06:32","modified_gmt":"2026-08-04T15:06:32","slug":"common-weeds-ohio","status":"publish","type":"post","link":"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/","title":{"rendered":"15 Most Common Weeds of Ohio: How to Identify and Control Them"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Ohio&#8217;s fertile soil is great for lawns and gardens, but it also produces a bumper crop of weeds, from crabgrass, dandelions, and clover to noxious species such as Japanese knotweed.<\/p>    <p class=\"wp-block-paragraph\">Identifying which weeds are invading your yard is the first step toward getting rid of them for good. This guide covers the 15 most common Ohio weeds and how to control each one, including when lawn treatment can help keep them from coming back.<\/p>    <p class=\"wp-block-paragraph\">Getting the right herbicide at the right time can be tricky. LawnStarter&#8217;s <a href=\"https:\/\/signup-web.lawnstarter.com\/cart\/contact-info?intent=fertilization\">lawn treatment service<\/a> connects you with local pros who handle it all.<\/p>    <figure class=\"wp-block-table is-style-stripes has-medium-font-size\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Key Takeaways<\/strong><\/th><\/tr><\/thead><tbody><tr><td>\u2022 <strong>Ohio&#8217;s fertile soil<\/strong> is prime territory for more than a dozen common weeds, from dandelions and crabgrass to invasive species like Japanese knotweed.<br>\u2022 <strong>Most Ohio weeds<\/strong> fall into 1 of 3 categories: broadleaf, grassy, or sedges, and each requires a different control approach.<br>\u2022 <strong>Using the right herbicide<\/strong> at the right stage of a weed&#8217;s life cycle is the most effective way to keep weeds from coming back.<\/td><\/tr><\/tbody><\/table><\/figure>   <div class=\"wp-block-ub-table-of-contents-block ub_table-of-contents\" id=\"ub_table-of-contents-0d822669-0fb9-4644-8003-400ca6db1843\" data-linktodivider=\"false\" data-showtext=\"show\" data-hidetext=\"hide\" data-scrolltype=\"auto\" data-enablesmoothscroll=\"false\" data-initiallyhideonmobile=\"false\" data-initiallyshow=\"true\"><div class=\"ub_table-of-contents-header-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-header\" style=\"text-align: left; \"> \t\t\t\t<div class=\"ub_table-of-contents-title\" style=\"\">In this article:<\/div> \t\t\t\t \t\t\t<\/div> \t\t<\/div><div class=\"ub_table-of-contents-extra-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-container ub_table-of-contents-1-column\"> \t\t\t\t<ul style=\"\"><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#0-types-of-weeds\" style=\"\">Types of Weeds<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#1-ohio-weed-identification-at-a-glance\" style=\"\">Ohio Weed Identification at a Glance<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#2-common-ohio-broadleaf-weeds\" style=\"\">Common Ohio Broadleaf Weeds<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#13-grass-like-weeds-in-your-ohio-lawn-including-nutsedge\" style=\"\">Grass-Like Weeds in Your Ohio Lawn (Including Nutsedge)<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#18-common-ohio-shrub-weeds\" style=\"\">Common Ohio Shrub Weeds<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#20-when-to-treat-common-ohio-weeds\" style=\"\">When to Treat Common Ohio Weeds<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/common-weeds-ohio\/#21-faqs\" style=\"\">FAQs<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>   <h2 id=\"0-types-of-weeds\" class=\"wp-block-heading\">Types of Weeds<\/h2>    <p class=\"wp-block-paragraph\">A weed is any unwanted plant that grows quickly and competes with wanted plants for nutrients and sunlight. Ohio weeds can be classified by their looks or their life cycle.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>By&nbsp;appearance:<\/strong><\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type<\/strong><\/td><td><strong>Characteristics<\/strong><\/td><td><strong>Examples<\/strong><\/td><\/tr><tr><td>Broadleaf<\/td><td>Wide leaves with netlike veins; tap or fibrous roots<\/td><td>Dandelions, clover<\/td><\/tr><tr><td>Grasses<\/td><td>Look like lawn grass; grow in bunches; coarse texture<\/td><td>Crabgrass, foxtail<\/td><\/tr><tr><td>Sedges<\/td><td>Triangular stems; grass-like appearance<\/td><td>Yellow nutsedge<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\"><strong>By&nbsp;life cycle: <\/strong>Weeds are annuals (one growing season), biennials (2 years), or perennials (return year after year from deep root systems).<\/p>    <p class=\"wp-block-paragraph\">Use the identification chart below to identify lawn weeds and figure out what you&#8217;re looking at.<\/p>    <h2 id=\"1-ohio-weed-identification-at-a-glance\" class=\"wp-block-heading\">Ohio Weed Identification at a Glance<\/h2>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Weed Name<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Quick ID Tip<\/strong><\/td><\/tr><tr><td>Dandelion<\/td><td>Broadleaf<\/td><td>Yellow flower, jagged leaves, white puffball seed head<\/td><\/tr><tr><td>Poison Ivy<\/td><td>Broadleaf<\/td><td>Leaves of 3, glossy surface<\/td><\/tr><tr><td>Common Ragweed<\/td><td>Broadleaf<\/td><td>Triangular, hairy leaves, up to 6 feet tall<\/td><\/tr><tr><td>Ground Ivy<\/td><td>Broadleaf<\/td><td>Creeping vine, kidney-shaped leaves with scalloped edges<\/td><\/tr><tr><td>Stinging Nettle<\/td><td>Broadleaf<\/td><td>Sawtooth leaves, tiny hairs on stem<\/td><\/tr><tr><td>Yellow Woodsorrel<\/td><td>Broadleaf<\/td><td>Looks like clover, small yellow flowers with five petals<\/td><\/tr><tr><td>Henbit<\/td><td>Broadleaf<\/td><td>Square stems, reddish-purple flowers<\/td><\/tr><tr><td>Common Blue Violet<\/td><td>Broadleaf<\/td><td>Heart-shaped leaves, purple-blue flowers<\/td><\/tr><tr><td>Common Chickweed<\/td><td>Broadleaf<\/td><td>Bright green pointed leaves, small white flowers<\/td><\/tr><tr><td>Japanese Knotweed<\/td><td>Broadleaf<\/td><td>Looks like bamboo, oval leaves pointed at tip<\/td><\/tr><tr><td>Crabgrass<\/td><td>Grass<\/td><td>Coarse texture, yellow-green, spreading stems<\/td><\/tr><tr><td>Giant Foxtail<\/td><td>Grass<\/td><td>Fuzzy, drooping seed head resembling a fox&#8217;s tail<\/td><\/tr><tr><td>Annual Bluegrass<\/td><td>Grass<\/td><td>Light-green leaves with boat-shaped tips<\/td><\/tr><tr><td>Yellow Nutsedge<\/td><td>Sedge<\/td><td>Triangular stem, yellowish-green leaves<\/td><\/tr><tr><td>Bush Honeysuckle<\/td><td>Shrub<\/td><td>Egg-shaped leaves, tubular flowers, red berries<\/td><\/tr><\/tbody><\/table><\/figure>    <h2 id=\"2-common-ohio-broadleaf-weeds\" class=\"wp-block-heading\">Common Ohio Broadleaf Weeds<\/h2>    <h3 id=\"3-1-dandelion-taraxacum-officinale-\" class=\"wp-block-heading\">1. Dandelion (<em>Taraxacum officinale<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2022\/08\/rsz_dandelions-g65abded2b_1280.jpg\" alt=\"Dandelion Flowers\"\/><figcaption class=\"wp-element-caption\">Dandelion flowers. Photo Credit: <a href=\"https:\/\/pixabay.com\/sk\/photos\/p%c3%bapavy-kvety-p%c3%bapava-jar-pr%c3%adroda-5183631\/\" target=\"_blank\">Margotta68<\/a> \/ Pixabay \/\u00a0<a href=\"https:\/\/pixabay.com\/sk\/service\/license\/\" target=\"_blank\">License<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Dandelions reproduce by seeds and root remnants. Their deep taproots make them tenacious. If you try to get rid of dandelions by digging, remove all taproots to prevent regrowth.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle: <\/strong>Perennial<\/p>    <p class=\"wp-block-paragraph\"><strong>Where it thrives: <\/strong>Moist soil and sunlight<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify dandelions:<\/strong>&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><p>Single yellow flower on a hollow stem with jagged basal leaves<\/p><\/li>    <li><p>White, fluffy seed head&nbsp;at maturity<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of dandelions:&nbsp;<\/strong>Use a pre-emergent or post-emergent herbicide.  You can also dig dandelions up, snip the flowers, and heavily mulch the leaves.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related<\/strong>: <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-get-rid-of-dandelions\/\">How to Get Rid of Dandelions<\/a><\/p>    <h3 id=\"4-2-poison-ivy-toxicodendron-radicans-\" class=\"wp-block-heading\">2. Poison Ivy (<em>Toxicodendron radicans<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/poison-ivy.jpg\" alt=\"green leaves with a bark\"\/><figcaption class=\"wp-element-caption\">Posison ivy. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/jsjgeology\/49046043216\" target=\"_blank\">James St. John<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Poison ivy grows as a shrub, vine, or ground cover. Its oil causes a <a target=\"_blank\" href=\"https:\/\/weedguide.cfaes.osu.edu\/singlerecord.asp?id=113\">severe rash<\/a> with swelling and blistering, according to Ohio State University (OSU). Wear protective clothing when removing it.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong>&nbsp;Perennial<\/p>    <p class=\"wp-block-paragraph\"><strong>Where it thrives: <\/strong>Soil with high calcium content<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify poison ivy:<\/strong> 3-leaflet clusters with glossy leaflets that may be jagged or egg-shaped.<\/p>    <p class=\"wp-block-paragraph\"><strong>How to get rid of poison ivy: <\/strong>Use herbicides with glyphosate or triclopyr; hand-pull or cut. Do not burn. Smoke can cause breathing problems.<\/p>    <h3 id=\"5-3-common-ragweed-ambrosia-artemisiifolia-\" class=\"wp-block-heading\">3. Common Ragweed (<em>Ambrosia artemisiifolia<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Common-Ragweed.jpg\" alt=\"green plant on a ground\"\/><figcaption class=\"wp-element-caption\">Ragweed. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/74738817@N07\/37190440542\/in\/photolist-YEoJh7-L1EyqP-KwwdeX-JGVHU3-LdZSHr-LWaWLE-LdZUbM-PE6xVq-Q5C1ey-Q5BZzC-XCg7k3-YEoM63-PHiBLD-YGYw48-YEoSbd-X2yNT1-Jxxuji-26fEZCy-zLutPg-GGeFEx-zcHuqs-Dq2DhL-CCWY6Q-CD4ULP-DuAakk-Duxzm2-DSDiHC-89gtKZ-D6CSfK-85pV84-88N8cG-D6mnj1-DuA9QH-E1GQ47-b6rTHp-cZoW6G-2kiZVXf-85t58q-8Nj5Mb-cZoXg1-cZoYoC-cvJHjS-cZp14C-cvJGK3-iTxfd8-iTxNcF-iTxCjn-iTAhoN-iTzsnV-iTwrhB\" target=\"_blank\">Andreas Rockstein<\/a> \/ Flickr \/ CC BY-SA 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">In Ohio, ragweed allergy starts in early August and can continue until November, with September being the <a href=\"https:\/\/adams.osu.edu\/sites\/adams\/files\/imce\/Ag_and_Natural_Resources\/Week_of_the_week\/Common%20Ragweed%209-20-23.pdf\" target=\"_blank\">highest pollen month<\/a>. Each ragweed plant can produce 30,000 to 60,000 seeds and will smother your turf and native plants as it takes over the yard.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Summer annual&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Any soil; prefers full sun<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify common ragweed: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Up to 6 feet tall <\/p><\/li>    <li><p>Green to purple stems and triangular, hairy leaves<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of common ragweed: <\/strong>Use pre- or <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/applying-post-emergent-herbicides-to-your-lawn\/\">post-emergent herbicides<\/a>. (Note: Some Ohio varieties are glyphosate-resistant.) Mowing before flowering also helps.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related<\/strong>: <a href=\"https:\/\/www.lawnstarter.com\/blog\/gardening\/is-it-time-to-ditch-the-roundup-habit\/\">Glyphosate: Pros, Cons, and Alternatives<\/a><\/p>    <h3 id=\"6-4-ground-ivy-glechoma-hederacea-\" class=\"wp-block-heading\">4. Ground Ivy (<em>Glechoma hederacea<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/wp.wikilawn.com\/wp-content\/uploads\/2023\/05\/Ground-Ivy-Glechoma-Hederacea.jpg\" alt=\"Puple COlor ground ivy Flower\"\/><figcaption class=\"wp-element-caption\">Ground ivy. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/99758165@N06\/18871815551\" target=\"_blank\">NY State IPM Program<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Ground ivy <a target=\"_blank\" href=\"https:\/\/weedguide.cfaes.osu.edu\/singlerecord.asp?id=58\">spreads by rooting<\/a> wherever its stems touch soil, forming thick mats that crowd out turfgrass.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Perennial&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Shade and moist soils<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify ground ivy:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Kidney-shaped leaves with scalloped edges<\/p><\/li>    <li><p>Purplish-blue flowers<\/p><\/li>    <li><p>Sprawling, creeping growth<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of ground ivy: <\/strong>Post-emergent herbicide for established plants. Pulling by hand or using a power rake may also work.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related:<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/reviews\/best-power-rakes\/\">8 Best Power Rakes<\/a><\/p>    <h3 id=\"7-5-stinging-nettle-urtica-dioica-\" class=\"wp-block-heading\">5. Stinging Nettle (<em>Urtica dioica<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Stinging-Nettle.jpg\" alt=\"closeup image of stinging nettle\"\/><figcaption class=\"wp-element-caption\">Stinging nettles. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/74738817@N07\/31183915686\/in\/photolist-PvBHGJ-29yoH41-PZHdew-YhwQmf-226Ew3D-QaoQrU-LHNFgr-PDHovm-22y5ynp-XQN1x4-2fd9Lmy-Gn2hDT-KTVGq6-UjdGLL-2jMS741-YCokpA-226EspB-UHuo1A-2mNFTEA-QX7BRd-223Ze5b-223Zgfy-Vmi7uN-226Ewfc-VAR4FB-XQN4bF-Kjw7uq-KjNsF4-Gn2nkg-2n2KCM6-ZtAoV9-2avJwMY-ZxS6z6-2m6dq31-2oxn2oL-2iQpJRe-PPpYj6-5QPkQP-VN27Wq-M7wxRu-nBXCEo-2hz2xQs-aAiS7c-bt5swK-aMXn3z-8aA4Z9-aMXj68-TM94En-4KY9Fo-K7Y5YB\" target=\"_blank\">Andreas Rockstein<\/a> \/ Flickr \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\" target=\"_blank\" rel=\"noreferrer noopener\">CC BY-SA 2.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">The tiny hairs on stinging nettle&#8217;s stems inject an irritating compound on contact. Its underground stem network allows it to repopulate quickly; according to OSU, the network <a target=\"_blank\" href=\"https:\/\/weedguide.cfaes.osu.edu\/singlerecord.asp?id=81\">can spread 5 feet or more<\/a> in a season.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong>&nbsp;Perennial<\/p>    <p class=\"wp-block-paragraph\"><strong>Where it thrives:<\/strong>&nbsp;Sun and damp, nutrient-rich soil<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify stinging nettle:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Grows 3 to 6.5 feet tall<\/p><\/li>    <li><p>Bright to dark green sawtooth leaves<\/p><\/li>    <li><p>Clusters of tiny greenish-white flowers<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of stinging nettle:<\/strong> Use an herbicide that attacks the root system. Digging or pulling also works. Wear protection and don&#8217;t leave pulled plants in the yard. Frequent mowing can thin the colony.<\/p>    <h3 id=\"8-6-yellow-woodsorrel-oxalis-stricta-\" class=\"wp-block-heading\">6. Yellow Woodsorrel (<em>Oxalis stricta<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/wp.wikilawn.com\/wp-content\/uploads\/2023\/05\/Common-Yellow-Woodsorrel-Oxalis-Stricta.jpg\" alt=\"Yellow Color Woodsorrel Flower with green leaves\"\/><figcaption class=\"wp-element-caption\">Yellow woodsorrel. Photo Credit: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Oxalis_stricta_yellow_wood_sorrel.jpg\" target=\"_blank\">Dcrjsr<\/a> \/ Wikimedia Commons \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by\/3.0\" target=\"_blank\">CC BY 3.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Yellow woodsorrel (also called oxalis) can indicate drainage issues. It germinates late and may appear after other broadleaf weeds have gone to seed. <\/p>    <p class=\"wp-block-paragraph\">The Pet Poison Helpline notes the soluble oxalate it contains <a target=\"_blank\" href=\"https:\/\/www.petpoisonhelpline.com\/poison\/shamrock\/\">can be toxic<\/a> to dogs and cats in large quantities.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Perennial<\/p>    <p class=\"wp-block-paragraph\"><strong>Where it thrives: <\/strong>Full sun and moist soil<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify yellow woodsorrel: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>3 heart-shaped leaves resembling clover<\/p><\/li>    <li><p>Small yellow flowers with five petals<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of yellow woodsorrel: <\/strong>Herbicides containing triclopyr and fluroxypyr are effective. Hand-pick young plants before they flower. Mulch garden beds to prevent&nbsp;germination.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related:<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/clover-vs-oxalis-whats-the-difference\/\">Clover vs. Oxalis: What\u2019s the Difference?<\/a><\/p>    <h3 id=\"9-7-henbit-lamium-amplexicaule-\" class=\"wp-block-heading\">7. Henbit (<em>Lamium amplexicaule<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/henbit-gce4914970_1280-2.jpg\" alt=\"Purple colored flowers of Henbit\"\/><figcaption class=\"wp-element-caption\">Purple henbit flowers. Photo Credit: <a href=\"https:\/\/pixabay.com\/sk\/photos\/henbit-lamium-amplexicaule-burina-101575\/\" target=\"_blank\">JamesDeMers<\/a> \/ Pixabay \/\u00a0<a href=\"https:\/\/pixabay.com\/sk\/service\/license-summary\/\" target=\"_blank\">License<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Henbit provides pollen for bees and nectar for hummingbirds&nbsp;but quickly invades thin turf. It is commonly confused with purple deadnettle.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Winter annual&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Shade and cool, moist areas<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify henbit: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Grows<strong> <\/strong>up to 16 inches high<\/p><\/li>    <li><p>Green to purple square stems<\/p><\/li>    <li><p>Egg-shaped leaves with blunt-toothed edges&nbsp;and reddish-purple flowers<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of henbit:<\/strong> Dense turf is the best prevention method. Post-emergent herbicides work best when plants are seeding or flowering. Small plants can be hand-pulled.<\/p>    <h3 id=\"10-8-common-blue-violet-viola-sororia-\" class=\"wp-block-heading\">8. Common Blue Violet (<em>Viola sororia<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/800px-Viola_sororia_in_Wisconsin-1.jpg\" alt=\"Blue colored flowers of common blue violet\"\/><figcaption class=\"wp-element-caption\">Blue flowers of common blue violet. Photo Credit: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Viola_sororia_in_Wisconsin.jpg\" target=\"_blank\">James Steakly<\/a> \/ Wikimedia Commons \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/deed.en\" target=\"_blank\">CC BY-SA 3.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Common blue violet is one of several wild violet species found in the Midwest. The others are woolly blue violet (<em>Viola papilionacea<\/em>) and confederate violet (<em>Viola sororia f. priceana<\/em>). <\/p>    <p class=\"wp-block-paragraph\">While some people welcome the plant as a ground cover, it can spread and compete for resources with turfgrass.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Perennial&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Partial sun and moist soil <\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify common blue violets: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>About 4 inches high<\/p><\/li>    <li><p>Heart-shaped leaves with rounded teeth<\/p><\/li>    <li><p>Purple-blue flowers<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of common blue violets: <\/strong><a href=\"https:\/\/bygl.osu.edu\/node\/1239\" target=\"_blank\" rel=\"noreferrer noopener\">Hand-pull them<\/a> if you catch them early, according to OSU. Apply post-emergent broadleaf herbicides containing triclopyr in the fall for established plants.<\/p>    <h3 id=\"11-9-common-chickweed-stellaria-media-\" class=\"wp-block-heading\">9. Common Chickweed (<em>Stellaria media<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2022\/07\/rsz_1280px-stellaria_media_common_chickweed_%E1%83%9F%E1%83%A3%E1%83%9C%E1%83%9F%E1%83%A0%E1%83%A3%E1%83%99%E1%83%98-2.jpg\" alt=\"Common Chickweed\"\/><figcaption class=\"wp-element-caption\">Common chickweed. Photo Credit: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Stellaria_media_Common_Chickweed_%E1%83%9F%E1%83%A3%E1%83%9C%E1%83%9F%E1%83%A0%E1%83%A3%E1%83%99%E1%83%98.JPG\" target=\"_blank\">Lazaregagnidze<\/a> \/ Wikimedia Commons \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/deed.en\" target=\"_blank\">CC BY-SA 4.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Common chickweed germinates in fall, overwinters, then flowers and sets seed in spring before dying. According to OSU, <a target=\"_blank\" href=\"https:\/\/adams.osu.edu\/sites\/adams\/files\/imce\/Ag_and_Natural_Resources\/Week_of_the_week\/Common%20Chickweed%2011-13-23.pdf\">each chickweed plant<\/a> can produce on average 25,000 seeds, so early treatment is critical.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:&nbsp;<\/strong>Cool-season annual <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Full sun or partial shade; moist soil<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify common chickweed:<\/strong>&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><p>Up to 4 inches tall<\/p><\/li>    <li><p>Bright green leaves with pointed tips<\/p><\/li>    <li><p>Small white flowers with 5 deeply divided petals<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of common chickweed: <\/strong>Apply pre-emergent herbicides in late fall. Post-emergents are most effective on seedlings. Mulching and hand weeding also help.<\/p>    <h3 id=\"12-10-japanese-knotweed-polygonum-cuspidatum-\" class=\"wp-block-heading\">10. Japanese Knotweed (<em>Polygonum cuspidatum<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Japanese-Knotweed.jpg\" alt=\"closeup image of Japanese Knotweed\"\/><figcaption class=\"wp-element-caption\">Close-up image of Japanese knotweed. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/plant_diversity\/14985915600\/in\/photolist-oQfJBb-oQgGTB-p7HLky-oQfPdz-p7uk3K-oQfUPf-oQfJgF-oQghHf-p7KCV2-oQgBqH-oQfSn1-oQfLFb-p7HAgA-oQggyZ-f5wKiq-NxksbL-81ENa4-6u53qS-6sgYdB-6UM9kF-6vXGzm-6qnitt-VkKd7G-6u54b1-vYCyYp-KfY3me-vjfA8e-8Lrmyi-4HYC77-8LrmKX-6vTumH-8Luqxm-8cDGmu-6xBsT8-zKtMrm-6qrs7J-6Ae86r-8uGh3Q-82iQBZ-6xBiLt-6xFzMY-8hrEVW-6JXhHj-Atdaej-8aHELp-82iQEX-6Ae8QK-6smaQY-6ytJhy-zvcri4\" target=\"_blank\">Matt Lavin<\/a> \/ Flickr \/\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/\" target=\"_blank\">CC BY-SA 2.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Japanese knotweed can <a href=\"https:\/\/weedguide.cfaes.osu.edu\/singlerecord.asp?id=60\" target=\"_blank\" rel=\"noreferrer noopener\">grow up to 10 feet<\/a> in one growing season and can burst through pavement or exploit foundation cracks. It is considered a <a href=\"https:\/\/farmoffice.osu.edu\/blog\/wed-09092020-1059am\/noxious-weeds-your-property-what-your-responsibility\" target=\"_blank\" rel=\"noreferrer noopener\">noxious weed in Ohio<\/a>.<br><br><strong>Life cycle:<\/strong>\u00a0Perennial<\/p>    <p class=\"wp-block-paragraph\"><strong>Type:<\/strong> Broadleaf <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Full sun (tolerates shade); moist soil<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify Japanese Knotweed:<\/strong> <\/p>    <ul class=\"wp-block-list\"> <li><p>Hollow, jointed stems (occasionally mistaken for bamboo)<\/p><\/li>    <li><p>Oval leaves pointed at the tip<\/p><\/li>    <li><p>Clusters of whitish-green flowers<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of Japanese Knotweed:<\/strong> Its massive rhizome system makes eradication difficult. Mowing works, but bag all parts and clean equipment. Use caution when applying herbicides near waterways.<\/p>    <h2 id=\"13-grass-like-weeds-in-your-ohio-lawn-including-nutsedge\" class=\"wp-block-heading\">Grass-Like Weeds in Your Ohio Lawn (Including Nutsedge)<\/h2>    <h3 id=\"14-11-crabgrass-digitaria-spp\" class=\"wp-block-heading\">11. Crabgrass (<em>Digitaria<\/em>&nbsp;spp.)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Crabgrass.jpg\" alt=\"Green colored crabgrass grown alongside road\"\/><figcaption class=\"wp-element-caption\">Green crabgrass growing alongside road. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/99758165@N06\/18217952904\/in\/photolist-a8K8Lx-fgVQFa-XRMpkX-FNGXqX-tKRLGh-uH7aGz-tKRKCU-uqq8uc-uGq8md-uqhGRu-tL2HTk-tKRqbh-uqhCSY-uGquC1-gQ9SV-uGqwdq-uqqtNi-uEy54b-4Jmo6y-5ewnug-XAey9w-2hdiFGe-7dZtSA-hhzZR-g9Udt-2gSisWz-2gShFn2-2gSitmC-2hdhQot-2hdhLEX-2gSisKx-2hdhHvL-5aAe2J-bC39ej-bQWQ94-5RoyVU-bQWSwZ-bQWRp8-d7ajM-bQWPPe-bWiP8E-bC3c8h-2heG6uj-2heDyfL-2heFcMR-bQWSmc-2me1CXm-bC39Jy-2me5tdm-2me2P4i\" target=\"_blank\">NY State IPM Program at Cornell University<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Crabgrass grows in compacted soil, which signals your yard may need\u00a0aeration. A single crabgrass plant can produce <a href=\"https:\/\/www.umass.edu\/agriculture-food-environment\/turf\/fact-sheets\/biology-management-of-crabgrass\" target=\"_blank\" rel=\"noreferrer noopener\">up to 150,000 seeds<\/a>, helping crabgrass spread easily in lawns and gardens.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:<\/strong> Summer annual<\/p>    <p class=\"wp-block-paragraph\"><strong>Where it thrives: <\/strong>Full to partial sun; compacted soil in thin, sunny turf<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify crabgrass: <\/strong>&nbsp;<\/p>    <ul class=\"wp-block-list\"> <li><p>Coarse-textured, yellow-green color<\/p><\/li>    <li><p>Spreading stems that grow outward<\/p><\/li>    <li><p>Patches in bare or thin lawn areas<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of crabgrass: <\/strong>To manage crabgrass, use a <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/what-are-pre-emergent-herbicides\/\">pre-emergent herbicide<\/a>. The <a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/when-to-apply-crabgrass-preventer-ohio\/\">best time to apply crabgrass preventer<\/a> in Ohio is between mid-March and mid-April when soil temperatures are 50 to 55 degrees. <a href=\"https:\/\/signup-web.lawnstarter.com\/cart\/contact-info?intent=aeration\">Hire an aeration pro<\/a> if you have compacted soil.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related:<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-get-rid-of-crabgrass\/\">How to Get Rid of Crabgrass in Your Yard<\/a><\/p>    <h3 id=\"15-12-giant-foxtail-setaria-faberi-\" class=\"wp-block-heading\">12. Giant Foxtail (<em>Setaria faberi<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Giant-Foxtail.jpg\" alt=\"Green colored giant foxtail grown\"\/><figcaption class=\"wp-element-caption\">Giant foxtail. Photo Credit:\u00a0<a href=\"https:\/\/www.flickr.com\/photos\/99758165@N06\/19037071946\/in\/photolist-2nEEUXf-2nEzTMJ-2nEEUUz-7cL5UK-v1eYfo-uL7dyX-uKYghE-u6Hfig-v1eVym-uKYiSu\" target=\"_blank\">NY State IPM Program at Cornell University<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Giant foxtail is one of <a target=\"_blank\" href=\"https:\/\/u.osu.edu\/beef\/2019\/11\/13\/control-foxtail-in-your-forages\/\">3 foxtail species<\/a> common in Ohio. This&nbsp;drought-tolerant, bunch-type weed is an aggressive self-seeder that is difficult to control once established in lawns or pastures.<\/p>    <p class=\"wp-block-paragraph\">It&#8217;s also dangerous for pets. According to PetMD, foxtail seeds have <a target=\"_blank\" href=\"https:\/\/www.petmd.com\/dog\/care\/how-protect-your-dog-foxtails\">backward-facing barbs<\/a> that burrow into skin, introducing dirt and bacteria. <br><br><strong>Life cycle:<\/strong>&nbsp;Summer annual <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Sun and compacted soil with high nitrogen<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify giant foxtail:<\/strong>\u00a0<\/p>    <ul class=\"wp-block-list\"> <li><p>Up to 4 feet tall with light green, floppy leaves<\/p><\/li>    <li><p>3- to 7-inch drooping seed head resembling a fox&#8217;s tail<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of giant foxtail:<\/strong> Apply pre-emergent herbicides in early spring. Post-emergent weed spraying may require multiple rounds. Mow before seed heads form.<\/p>    <h3 id=\"16-13-annual-bluegrass-poa-annua-\" class=\"wp-block-heading\">13. Annual Bluegrass (<em>Poa annua<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/05\/18873821918_c6cc94a2c7_o-1.jpg\" alt=\"close-up photo of annual bluegrass\"\/><figcaption class=\"wp-element-caption\">Annual bluegrass. Photo Credit:\u00a0<a href=\"https:\/\/www.flickr.com\/photos\/99758165@N06\/18873821918\" target=\"_blank\">NY State IPM Program at Cornell University<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Not to be confused with Kentucky bluegrass (a perennial), annual bluegrass signals compacted soil. It chokes out turfgrass and goes dormant in summer before seeds germinate in fall.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:&nbsp;<\/strong>Cool-season annual <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Shady, moist, compacted soil<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify annual bluegrass:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Light-green leaves with a boat-shaped tip<\/p><\/li>    <li><p>Greenish-white seed heads in spring<\/p><\/li>    <li><p>Grows in tufts<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of annual bluegrass:&nbsp;<\/strong>Proper lawn maintenance and aeration are the best preventatives. Dig up small patches. Apply pre-emergent herbicide in fall.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related<\/strong>: <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-aerate-lawn\/\">How to Aerate Your Lawn: A Complete Guide<\/a><\/p>    <h3 id=\"17-14-yellow-nutsedge-cyperus-esculentus-\" class=\"wp-block-heading\">14. Yellow Nutsedge (<em>Cyperus esculentus<\/em>)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/05\/Yellow-Nutsedge.jpg\" alt=\"Yellow Nutsedge\"\/><figcaption class=\"wp-element-caption\">Yellow nutsedge. Photo Credit: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Yellow_Nutsedge_%2818839918805%29.jpg\" target=\"_blank\">NY State IPM Program at Cornell University<\/a> \/ Wikimedia Commons \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by\/2.0\/deed.en\" target=\"_blank\">CC BY 2.0<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Yellow nutsedge&nbsp;looks like grass but is a sedge that doesn&#8217;t respond to standard grass herbicides. It signals overwatering or poor drainage.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:&nbsp;<\/strong>Perennial <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Sun and moist areas<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify nutsedge: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>Grows<strong> <\/strong>12 to 16 inches tall<\/p><\/li>    <li><p>Yellowish-green leaves with a triangular stem<\/p><\/li>    <li><p>Golden-brown flower heads<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of nutsedge: <\/strong>Use post-emergent herbicides as spot treatments for established plants.<strong> <\/strong>Young plants can be dug out, though be sure to dig 10 inches deep and 8 to 10 inches around the plant.<\/p>    <p class=\"wp-block-paragraph\"><strong>See Related:<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-control-nutsedge\/\">How to Control Nutsedge in Your Yard<\/a><\/p>    <h2 id=\"18-common-ohio-shrub-weeds\" class=\"wp-block-heading\">Common Ohio Shrub Weeds<\/h2>    <h3 id=\"19-15-bush-honeysuckles-lonicera-spp\" class=\"wp-block-heading\">15. Bush Honeysuckles (<em>Lonicera<\/em> spp.)<\/h3>    <figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2023\/06\/Bush-Honeysuckles.jpg\" alt=\"Red colored berries on a plant\"\/><figcaption class=\"wp-element-caption\">Bush honeysuckle. Photo Credit: <a href=\"https:\/\/www.flickr.com\/photos\/cricketsblog\/29344628344\/in\/photolist-LH5TE1-LH5STw-2owkiuL-2mYXARw-FrQm3w-5vdVsG-VkcVUV-9GQjCF-VkcVPV-RbHaLr-6qsdjC-thmGTF-6oQKHN-M5ekbW-2jjLNns-82KGnQ-2jjJsGU-2jjLV9U-a1T3Gx-2dYEei2-2ot3PeM-2oDpktR-KGEKCr-jZakf3-TwKNM6-frhcGg-2iMumos-dfqwKV-f3oKt9-25HoxMS-eRiA7p-eRuXV7-26UTrrL-2o6J8oz-obxFMS-nXhjGf-PLNVhx-2mKf5-8qg1zB-iQBuhb-m3VwXs-9Q4aUk-2h9RBkY-9GQjL4-QQeAzK-9HujRh-QQeAKz-7Kvm2w-rgfCH3-2iVrrd4\" target=\"_blank\">Melissa McMasters<\/a> \/ Flickr \/ CC BY 2.0<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Bush honeysuckles <a target=\"_blank\" href=\"https:\/\/weedguide.cfaes.osu.edu\/singlerecord.asp?id=54\">come in 3 varieties<\/a>: Amur, Morrow, and Tatarian. Birds spread them by eating their berries. Once established, they dominate a landscape and crowd out native plants.<\/p>    <p class=\"wp-block-paragraph\"><strong>Life cycle:&nbsp;<\/strong>Perennial <\/p>    <p class=\"wp-block-paragraph\"><strong>Thrives in:<\/strong> Shaded, woody areas with moist soils; fields and open areas also at risk<\/p>    <p class=\"wp-block-paragraph\"><strong>How to identify bush honeysuckles: <\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p>6 to 20 feet tall<\/p><\/li>    <li><p>Egg-shaped leaves (Amur variety has a sharp point)<\/p><\/li>    <li><p>Pink or white tubular flowers; red berries.<\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>How to get rid of bush honeysuckle: <\/strong>Mow, cut, pull, or dig small plants <a href=\"https:\/\/cfaes.osu.edu\/fact-sheet\/controlling-non-native-invasive-plants-ohio-forests-bush-honeysuckle\" target=\"_blank\">in early summer<\/a>, according to OSU. For larger shrubs, cut bush honeysuckle close to the ground and apply herbicide directly to the stump.<\/p>    <h2 id=\"20-when-to-treat-common-ohio-weeds\" class=\"wp-block-heading\">When to Treat Common Ohio Weeds<\/h2>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>When<\/strong><\/td><td><strong>Do This<\/strong><\/td><td><strong>Stops<\/strong><\/td><\/tr><tr><td><strong>Early spring<\/strong> (mid-March to mid-April, when forsythia blooms)<\/td><td>Apply crabgrass pre-emergent<\/td><td>Crabgrass, foxtail<\/td><\/tr><tr><td><strong>Early summer<\/strong> (late May\u2013early July)<\/td><td>Spot-spray post-emergent<\/td><td>Nutsedge and other summer weeds, while they&#8217;re young<\/td><\/tr><tr><td><strong>Late summer<\/strong> (mid-August to mid-September)<\/td><td>Apply fall pre-emergent<\/td><td>Winter annuals: chickweed, henbit, annual bluegrass<\/td><\/tr><tr><td><strong>Fall<\/strong> (September to October)<\/td><td>Apply broadleaf post-emergent<\/td><td>Perennials: dandelion, ground ivy, wild violet<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\">Pay attention to soil temperatures and plant behavior. A cold spring can push these back a couple weeks. The one rule worth remembering: pre-emergents go down <em>before<\/em> weeds sprout, post-emergents <em>after<\/em> they&#8217;re up and growing.<br><\/p>    <h2 id=\"21-faqs\" class=\"wp-block-heading\">FAQs<\/h2>    <div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-17852510361222770\"><strong class=\"schema-faq-question\">What Are Ohio&#8217;s Prohibited Noxious Weeds?<\/strong> <p class=\"schema-faq-answer\"><p>Ohio&#8217;s <a href=\"https:\/\/agri.ohio.gov\/divisions\/plant-health\/invasive-pests\/invasive-and-noxious-plants\/noxious-weeds\" target=\"_blank\" rel=\"noreferrer noopener\">prohibited noxious weed list<\/a> includes species such as Canada thistle, poison hemlock, giant hogweed, musk thistle, kudzu, Palmer amaranth and Japanese knotweed, which is one of the 15 weeds profiled in this article.<\/p><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-17852510361239002\"><strong class=\"schema-faq-question\">What Should I Do If I Touch Poison Ivy?<\/strong> <p class=\"schema-faq-answer\">Immediately wash your skin with soap and lots of cool water to remove the plant&#8217;s oil.&nbsp;Apply calamine lotion to calm itching. Do not scratch, as bacteria under your nails can cause infection.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-17852510361234050\"><strong class=\"schema-faq-question\">Which Ohio Weeds Are Dangerous to Pets?<\/strong> <p class=\"schema-faq-answer\">3 common Ohio weeds pose pet risks:<br>\u2022 Yellow woodsorrel: Toxic to dogs and cats in large quantities<br>\u2022 Stinging nettle: Causes painful contact rashes<br>\u2022 Giant foxtail: Seeds burrow into skin, eyes, or ears and require veterinary removal<\/p> <\/div> <\/div>    <h2 id=\"22-let-lawnstarter-handle-your-weed-control\" class=\"wp-block-heading\">Let LawnStarter Handle Your Weed Control<\/h2>    <p class=\"wp-block-paragraph\">There&#8217;s no need to deal with Ohio&#8217;s stubborn weeds on your own. LawnStarter can connect you with vetted local pros who treat all common Ohio weeds using the right herbicide at the right time.<\/p>    <p class=\"wp-block-paragraph\">The&nbsp;<a href=\"https:\/\/signup-web.lawnstarter.com\/cart\/contact-info?intent=fertilization\">lawn treatment service<\/a>&nbsp;program includes 7\u20138 visits per year for fertilization, pre-emergent, and broadleaf weed control. Our pros cover&nbsp;<a href=\"https:\/\/www.lawnstarter.com\/columbus-oh-lawn-care\">Columbus<\/a><span style=\"color: rgb(23, 28, 36);\">,&nbsp;<\/span><a href=\"https:\/\/www.lawnstarter.com\/cincinnati-oh-lawn-care\">Cincinnati<\/a><span style=\"color: rgb(23, 28, 36);\">,&nbsp;<\/span><a href=\"https:\/\/www.lawnstarter.com\/dayton-oh-lawn-care\">Dayton<\/a><span style=\"color: rgb(23, 28, 36);\">,&nbsp;<\/span><a href=\"https:\/\/www.lawnstarter.com\/akron-oh-lawn-care\">Akron<\/a><span style=\"color: rgb(23, 28, 36);\">,&nbsp;<\/span><a href=\"https:\/\/www.lawnstarter.com\/cleveland-oh-lawn-care\">Cleveland,<\/a>&nbsp;and many other cities across the Buckeye State. Get your free quote now.<\/p>    <p class=\"wp-block-paragraph\"><strong>Read More:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><p><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/when-to-apply-weed-and-feed-ohio\/\" rel=\"bookmark\" class=\"text0-black visited:text-black\">When to Apply Weed and Feed in Ohio<\/a><\/p><\/li>    <li><p><a href=\"https:\/\/www.lawnstarter.com\/blog\/ohio\/native-plants-ohio\/\" rel=\"bookmark\" class=\"text0-black visited:text-black\">10 Best Ohio Native Plants<\/a><\/p><\/li> <\/ul>    <p class=\"wp-block-paragraph\">Main Photo Credit: Ground ivy. 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