Up to 300 mm tall. Table 1 includes a partial list of preemergence herbicides labeled for control in and around ornamentals. Stems can be 3-9 inches long, and the leaves are mostly on the lower portion of the stem in a basal rosette. Each leaf stalk has 5-9 paired leaflets, shaped somewhat like a kidney bean or a ginkgo leaf, with a single terminal leaflet at the end. Weedkiller control. Once such weed is hairy bittercress. Hairy bittercress weed in wall. The ingredients must be 2-4 D, triclopyr, clopyralid, dicamba or MCPP. With just a thin layer of bark, bittercress will reproduce and likely expel seed into nearby containers. For best results, treat during rosette stage. Flowers and seeds of Hairy bittercress, Cardamine hirsuta, a small edible herb. Hairy bittercress (Cardamine hirsuta) is a winter or summer annual weed (depending on location). This weed can be controlled with various preemergence and postemergence herbicides. Though it is a small plant, any gardener who has faced off with this weed knows that hairy bittercress is a formidable opponent. Once removed the weeds can then be added to the compost heap. They grow in recently disturbed soil, open ground, waste places, lawns, and greenhouses … so they’re basically everywhere that you might want to be planting things! Hairy Bittercress (Cardamine Hirsuta) is a winter annual weed that begins growing in late fall and resumes growing in late winter and early spring, often before other plants wake up from their winter slumber. It is most often found in irrigated or shaded areas but can grow in full sun. Bio Advanced All-In-One Lawn Weed and Crabgrass Killer. Vegetative features include a rosette of pinnately compound leaves with rounded leaflets at the base of the plant and one or more stem leaves with elongated leaflets. I am a horticultualist in south east PA. bittercress continues to be a difficult weed to control due the number of seeds produced as well as its fast germination and growth throughout the year. Apply the herbicide in early Spring, while the plant is sending up stalks. Hairy Bittercress. Hairy bittercress ( Cardamine hirsuta) is a really unfortunate name for a wonderfully tasty edible weed. Press. Description of Bittercress, Hairy (cardamine hirsuta): Erect, slender, small, annual, herb, branching from the base and usually hairless except at the base. If you need a postemergent herbicide, look for one that lists hairy bittercress on the label and follow the label instructions. Hairy bittercress (Cardamine hirsuta) is a winter or summer annual weed (depending on location). I first saw this in my lawn in 2013. There’s a good chance that hairy bittercress (Cardamine hirsuta) may be growing among your garden weeds or between sidewalk cracks.You may know it by a number of different names such as hoary bittercress, land cress, lamb’s cress, flick weed, snapweed or shot weed. If you don’t mind eating *weeds however, Hairy Bittercress is edible, apparently tasting of watercress. They can be found in sunny and shady sites, but tend to be more numerous in wet shade. Clemson, SC. GlyphoMate® 41 Weed & Grass Killer Plus Aquatic Herbicide, Trimec® 1000 Low Odor Broadleaf Herbicide. Common names Other common or country names include lamb's cress, land cress, hoary bitter cress, spring cress, flick weed, and shot weed (or lambscress, landcress, hoary bittercress, springcress, flickweed, and shotweed). Hairy bittercress (Cardamine hirusta L.) is a winter annual, but occasionally a biennial, found in turf under moist, cool soils. During winter months you can easily identify it by the small basal rosette (cluster) of leaves on the ground. Bittercress is a very troublesome weed here in Charlotte in recent years. The invasive weed with a name evocative of the cranky old man up the street, and just as unwelcome, is carpet-bombing central Ohio this spring. Stems can be 3-9 inches long, and the leaves are mostly on the lower portion of the stem in a basal rosette. Common in West Virginia lawns and gardens, this weed is a winter annual that grows predominantly in spring but is capable of germinating and growing year-round under suitable environmental conditions. Clemson University. JavaScript seems to be disabled in your browser. Read these precautions first. 1997. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S. KY: Haragan, P.D.. 1991. Hairy bittercress (Cardamine hirsuta) is a winter or summer annual weed (depending on location). Control with a broadleaf postemergent herbicide (see this publication Broadleaf Weed Control in Established Lawns) when the weeds are actively growing in the spring. But, with this nice weather comes lawn/garden weeds, and they can take off swiftly, providing a limited window of opportunity for homeowners to get them under control. Leaf margins are deeply lobed. The leaves that emerge in the fall form a small rosette that will overwinter. Hairy Bittercress Weed Killer Cardamine hirsuta Herbicide. Its ability to remains green throughout the winter means this plant plays a crucial role for the wild forager as it supplies essential vitamins and minerals through the Winter, It is best eaten though in January and February. The short flower stems propel seeds up to a metre (39in) away, so the plant is best removed as soon as you spot it. Gallery 75 DF Specialty Herbicide . This plant grows on all continents with the exception of Antarctica. Hairy Bittercress, Wintercress, Common Bittercress, Snapweed, or Shotweed . Find herbicides that kill Bittercress (cardamine hirsuta) and control it. Although Hairy Bittercress is invasive, it does add a small benefit to wildlife. The first true leaves are heart-shaped, followed by compound leaves with two or more pairs of leaflets and a kidney shaped terminal leaflet. While these products do provide control, bittercress continues to be a difficult weed to control due the number of seeds produced as well as its fast germination and growth throughout the year. View our privacy policy. Hairy bittercress. A preemergent applied in late summer/early fall can help prevent hairy bittercress from germinating, however, you will not be able to sow grass seed. Bittercress often forms on the top of container-plants but can be a real nuisance in borders. Hairy bittercress - Cardamine hirsuta Edible plant - novice Other common names: Hoary Bittercress, Flick Weed, Lamb's Cress, Hot Weed, Spring Cress Scientific name meaning: The greek word Kardamon, which means "cress-like", is the origin of the genus name Cardamine. Severe infestations of hairy bittercress weed will require chemical treatment. Hairy Bittercress is a common lawn weed that grows during cold months, namely Autumn, Winter, and Early Spring. You may want to discard the stems, which tend to be bitter too, hence the common name. Hairy bittercress (Cardamine hirsuta) (see image above) is an annual species, common throughout the British Isles, particularly on bare ground, path-sides, and on walls. Hairy Bittercress weed. Control measures should be implemented before these weeds produce seed that can be deposited into the soil seed-bank. Its seeds germinate in fall beginning as early as September. Leaves at the base of the plant are larger than the leaves at the top of the plant. It seeds very quickly and shoots them out for some distance from the parent plant. It grows well in moist soils, full sun, as well as in shady areas of lawns, and is often found near ornamental beds, vegetable gardens, and paved areas. 397 pp. Hairy bittercress (Cardamine hirsuta) is a really unfortunate name for a wonderfully tasty edible weed.Bittercress is a mustard, so its bitterness is more spicy-hot than bitter, though it’s not nearly as hot as some other members of the Brassicaceae family. That weed is hairy bittercress. Hairy bittercress occurs on bare soil, in woodlands, and sometimes in light grassy areas. Bittercress, notice the small leaves and upright flower stalks Hairy bittercress( Cardamine hirsuta ) and similar species such as pennsylvania bittercress ( Cardamine pensylvanica ) are small annual or biennial herbs that are prolific native plants in almost every state in the US. The subsequent leaves that emerge on the plant have 2-4 pairs of alternate leaflets and a larger terminal leaflet. Weed. DiThomaso. Other names are ‘lambs cress’, ‘spring cress’, and ‘hairy bittercress’. The “hairy” in its name is derived from the tiny “hairs” on its leaves and stems. Many people prefer to snack on it straight from the field, but you may want to rinse it quickly to remove dirt and grit. It germinates in the fall and will continue to grow during warm spells throughout the winter. Weed Photos: Courtesy of Dr. Lambert McCarty. Clemson, SC. Celsius WG Herbicide. Hairy bittercress - Cardamine hirsuta Edible plant - novice Other common names: Hoary Bittercress, Flick Weed, Lamb's Cress, Hot Weed, Spring Cress Scientific name meaning: The greek word Kardamon, which means "cress-like", is the origin of the genus name Cardamine. Left unchecked, hairy bittercress can quickly spread to infest the whole garden. Flowering almost all year-round, this plant self-pollinates; when the seeds are ripe they burst from their pods and can be dispersed up to a metre away in all directions, especially … This weed forms a rosette of leaves in the fall and usually waits until spring to flower. Growing worldwide (except in the Antarctic, this genus of the Brassicaceae family numbers more than 150 species, both annual and perennial. It germinates in empty spaces and soon starts fizzing out seed all over your previously immaculate garden. Hairy Bittercress, (Cardamine hirsute), is a winter and summer annual that germinates from seed during cool moist conditions, like spring and fall. […] hairy bittercress General Information; Symbol: CAHI3 Group: Dicot Family: Brassicaceae ... be known by one or more common names in different places, and some are listed above. It is a particular problem in container-raised plants from nurseries and garden centres. It is a prolific seed producer that explodes at the slightest touch, sending tiny seeds flying in all directions when the seedpods mature. Both weeds commonly invade open, fall seeded stands or weak and bare areas. It may often be seen growing on the surface of containers in nurseries and garden centres and the seeds can be introduced into gardens unwittingly with container-grown plants. Hairy Bittercress Uses. Another option is to spot-treat the weed with a broadleaf postemergent herbicide when the weeds are actively growing in the spring. Uva, R.H., J.C. Neal, and J.M. Hairy Bittercress Weed Killer Cardamine hirsuta Herbicide. These are found in broadleaf herbicide preparations known as two, three or four-way treatments. Biology and Management of Hairy Bittercress (Cardamine hirsuta) in Ornamental Crop Production 5 Table 1. Previous Next. Hairy bittercress infestations can be reduced by frequent mowing in early spring to remove flower stems, increasing turf density through proper fertilization practices, and selection of turfgrasses that are well-adapted to site conditions. Weed of the Month: Hairy Bittercress By Saara Nafici | April 6, 2017 As winter warms to spring, a favorite weed of foragers starts to emerge in rather cute clumps—it’s hairy bittercress! The capsules will project the seeds when disturbed. It grows in a compact, basal rosette form – which is to say, its leaves all radiate out from around the base. *Follow label precautionary statements, restrictions, and directions regarding tolerant turfgrass species, rates, and timing of applications. After flower petals drop, 3⁄4 to 1 inch long narrow pods form and abruptly dehisce, launching seeds up to several feet from the pod. By entering your email, you consent to receive communications from Penn State Extension. It has actually been lurking near the surface all winter, having germinated in the fall and waited out the cold temperatures before sending up flowers and seeds. Hairy Bittercress (Cardamine hirsute) While temperatures remain cold, and even an occasional snow flake takes flight, there is weed that is giving it is all this spring. Weeds overwinter and continue to grow in early spring. Make your post-emergent herbicide application when hairy bittercress is young and actively growing. Clemson University. This weed is very noticeable in early spring during its peak flowering period; however, it becomes less conspicuous after stems are removed by mowing and as turfgrass growth rate increases in late spring. Learn how to control Hairy Bittercress with these easy to use products! There are multiple problems. Why do we need this? As soon as new plants appear in February or March, begin pulling them; these are the offspring of the previous fall's seed crop. Bittercress can be prevented by hand weeding or mowing and maintaining a thick, healthy lawn.You can take care of thin patches or bare spots in your yard with core aeration and overseeding, as well as applying fertilizer to strengthen your grass. The leaves form in a … Hairy bittercress forms stems that are smooth and erect, usually branched at the base with few leaves. Herbicides should be used as a last resort because of the potential risks to people, animals, and the environment. It likes dry slopes, juniper meadows, forest margins, wasteland, crags, rocky outcrops, sometimes as a gardens weed. Image 70 DG. Hairy bittercress is found from Maine to Florida, west to Nebraska and Texas. Hairy bittercress is a winter annual weed. Known as a winter weed, Hairy Bittercress is an annual in most climates. Center: Hairy bittercress stems with flowers and seed pods. Common names Other common or country names include lamb's cress, land cress, hoary bitter cress, spring cress, flick weed, and shot weed (or lambscress, landcress, hoary bittercress, springcress, flickweed, and shotweed). Hairy Bitter-cress (cardamine hirsuta), close up showing the tiny white flowers of the plant. Find the best value for spot treatment or broadcast treatments, comparing multiple options. It dies when the weather gets hot in late spring or early summer and after it … Seedlings often emerge following germination in fall and plants can overwinter in a vegetative state. About Hairy Bittercress. Table 1 includes a partial list of preemergence herbicides labeled for control in and around ornamentals. Germination Dates. It is a common weed of gardens, greenhouses, paths, railways and waste ground. Leaves at the base of the plant are larger than the leaves at the top of the plant. Flowers and seeds of Hairy bittercress, Cardamine hirsuta, a small edible herb. I remember seeing it as a kid but haven't seen it growing in a long time. Photos: Peter Landschoot, Penn State. Hairy bittercress is a winter annual or biennial plant in the mustard (Brassicaceae) family native to Europe and Asia, but also present in North America. Weed Type: Annual weed. Be aware that most preemergence herbicides will also prevent turfgrass seed from germinating. The leaves have 1-7 leaflets. Hairy Bitter Cress (Cardamine hirsuta) clump flowering in chalk grassland meadow, Wiltshire, UK, April. On unplanted land and path-sides contact weedkillers such as acetic acid (Weedol Fast Acting Gun), fatty acids (SBM Solabiol Super Fast Weedkiller) and pelargonic acid (Doff 24/7 Fast Acting Weedkiller) can be used to control the annual species Cardamine hirsuta. Remember that most gardeners view the plant as a pesky weed. Weed Type: Annual weed. Characteristics: Basal rosette and alternate leaf arrangement, small white flowers, taproot system. If using preem… The plant is self-pollinating and in bloom throughout the year. Hence the name Snapweed or Shotweed. Hirsuta means "hairy" or "hirsute". Hairy bitter-cress is a common, edible weed of rocky areas, walls, gardens and cultivated ground. It germinates readily in coarse gravel and on top of woven weed fabrics. You can also control both with a preemergent applied in early … Seeds germinate from late summer through fall. Characteristics: Basal rosette and alternate leaf arrangement, small white flowers, taproot system. If you need a postemergent herbicide, look for one that lists hairy bittercress on the label and follow the label instructions. Warmer temps and spring-like weather are welcomed by many. Hairy Bittercress, Cardamine hirsuta. It initially forms a basal rosette. This weed can be controlled with various preemergence and postemergence herbicides. Common broadleaf herbicides are effective for controlling Hairy Bittercress. Right: Hairy bittercress stems with multiple seed pods produced after flowering. Stems are erect and branching, usually 3 to 10 inches tall, with small (1⁄4 – 1⁄2 inch) white flowers containing four stamens at the tips of stem branches. Bittercress Cardamine hirsuta I love this little compact, rosette shaped annual with lobed leaves, small white flowers and upright seed pods that explode, flinging the seeds far and wide when ripe and you touch them, hence one of its names ‘shot weed or ‘flick weed’. Herbicide options for hairy bittercress control. Described as ephemeral, continued short generations bedevil you for the rest of the year. **Clopyralid-containing products should not be used on residential lawns but can be used for treating weeds in non-residential turf. Leaves are pinnate with round to kidney-shaped leaflets and plants have a slender, branched taproot. Leaves at the base of the plant are larger than the leaves at the top of the plant. Hirsuta is derived from the latin hirsutus, meaning "somewhat hairy". That weed is hairy bittercress. Distribution: Hairy bittercress (Cardamine hirsuta) is native to Eur… Hairy bittercress spreads by seed. Previous Next. A member of the mustard family (Cruciferae), hairy bittercress can function as a winter annual, summer annual, or biennial. While it has been lurking in gardens all winter long, it is flowering its little heart out and setting seeds right now in northwest Ohio. Hairy bittercress occurs on bare soil, in woodlands, and sometimes in light grassy areas. LEARN HOW TO STOP THE INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for the Extension Community, Pinnately compound leaves with rounded leaflets. The side leaflets are somewhat circular and the terminal leaflet is kidney shaped. Find the best value for spot treatment or broadcast treatments, comparing multiple options. Hairy bittercress likes moist freshly-disturbed soil and is a common weed in European gardens. This plant grows on all continents with the exception of Antarctica. Weed Photos: Courtesy of Dr. Lambert McCarty. Although not invasive, … The main problem in achieving successful control of hairy bittercress is that plants flower and produce seed before postemergence broadleaf herbicides are typically applied to lawns. Photo: Peter Landschoot, Penn State. The surface of the leaves is often hairy. Hairy bittercress typically flowers and produces seed during early spring. It can become very prolific in a short time, filling in gaps within your normal grass. Distribution. Do not underestimate the power of sanitation in your weed management program. You can also control with a preemergent herbicide applied in early to mid-September before the weed germinates. The initial true leaves are heart shaped, followed by leaves which contain 2 - 4 alternating leaflets. With its ability to produce around 5,000 seeds with no dormancy, the hairy bittercress can easily divide and overwhelm any garden. Hairy bittercress infestations can be reduced by frequent mowing in early spring to remove flower stems, increasing turf density through proper fertilization practices, and selection of turfgrasses that are well-adapted to site conditions. For best results, treat during rosette stage. This is an annual to biennial weed – seedlings can withstand the severest frost, making it a very hardy weed. The stalks on the leaves do not have hairs and the flowers have six stamens whereas Hairy Bittercress flowers have four, but growth is similar. You must have JavaScript enabled in your browser to utilize the functionality of this website. It really picks up growth in early spring. Once established, it is VERY difficult to eradicate. Hairy bittercress is that wretched small weed which appears in late Winter before inexperienced gardeners even think about weeding. Hairy bittercress. Those marketed as “fast acting” are contact weedkillers – killing or damaging the plant tissue they are sprayed onto or make contact with. Seedlings: Hairy Bittercress cotyledons (3 mm long (~1/10”)) are rounded, hairy on the surface, and form on long petioles. Hairy Bittercress, Cardamine hirsuta. Leaf margins are deeply lobed. Hairy bittercress, get off my lawn! Preemergence herbicides labeled for use in ornamental plant production and landscapes to control hairy bittercress. Bittercress is a weed that can thrive with limited resources. Bittercress is a mustard, so its bitterness is more spicy-hot than bitter, though it’s not nearly as hot as some other members of the Brassicaceae family. With its ability to produce around 5,000 seeds with no dormancy, the hairy bittercress can easily divide and overwhelm any garden. Young, non-flowering, specimen of Hairy Bittercress / Cardamine hirsuta growing in bare earth. The seed capsule is up to 10 times longer than it is wide. Cornell Univ. Although many homeowners may view the hair bittercress a pest, the plant is edible and has other good attributes. Hi-Yield Weed and Feed 15-0-10. Benefits of Hairy Bittercress. The leaves have 1-7 leaflets. The “hairy” in its name is derived from the tiny “hairs” on its leaves and stems. (continued) Final Thoughts The use of proper maintenance practices throughout the summer will help prevent the encroachment of winter annual broadleaf weeds in the fall. Clopyralid, dicamba or MCPP all continents with the exception of Antarctica is derived the! Alternating leaflets prolific seed producer that explodes at the top of the mustard family ( Brassicaceae ) bittercress can divide. Most climates weeds can then be added to the compost heap enough to warrant herbicides! People, animals, and J.M when pulling up weeds that have gone to … Severe of. 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Is found from Maine to Florida, west to Nebraska and Texas three or four-way treatments clopyralid, or. ‘ hairy bittercress, Snapweed, or events of interest to you likely expel seed into containers! Label instructions paths, railways and waste ground produces small white flowers the., railways and waste ground and on paths seed all over your previously immaculate garden by...., ‘ spring cress hairy bittercress herbicide, and timing of applications both with preemergent... Post emergence need to have two different active ingredients larger than the leaves are pinnate round... Stem with stem leaf, flower and seed pods say, its leaves and stems )!