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| | | Annual bluegrass | | Barnyardgrass | | Bentgrass, creeping | | Bermudagrass | | Birdfoot Trefoil | | Bittercress (Shotweed, Hairy bittercress) | | Bittersweet nightshade (European bittersweet) | | Black medic | | Blackberry (Himalayan, Evergreen, Pacific) | | Blue mustard (Purple mustard, Tenella mustard) | | Brackenfern, western | | Buffalobur | | Bull thistle | | Buttercup, creeping | | Butterfly bush | | Canada thistle | | Catchweed bedstraw (Cleavers) | | Catsear, common (False dandelion) | | Chickweed, common and mouseear | | Clover | | Comfrey | | Crabgrass | | Creeping Jenny | | Dandelion | | Dock (Curly, Broadleaf) | | Dodder | | Downy brome (Cheatgrass, Downy chess) | | Dwarf mistletoes | | English daisy (Lawn daisy) | | English ivy | | Field bindweed (Wild morningglory) | | Field pennycress (Fanweed) | | Flixweed | | Foxtail (Green, Yellow, Bristly) | | Garden loosestrife | | Giant hogweed | | Goldenrods | | Ground ivy | | Groundsel, common | | Hawkweeds | | Hedge bindweed | | Henbit | | Herb Robert (Robert geranium, stinky Bob) | | Horsetails (Scouringrush) | | Horseweed (Marestail) | | Knapweeds | | Knotweeds (Bohemian, Giant, Japanese, Himalayan) | | Kochia | | Lambsquarters, common | | Lesser celandine | | Liverworts | | Mallow, common (Cheeseweed, Buttonweed) | | Nightshades | | Oxalis (Creeping woodsorrel) | | Parrotfeather and Eurasian watermilfoil | | Pineappleweed | | Plantain (Broadleaf, Buckhorn) | | Poison hemlock | | Poison ivy and Poison oak | | Pokeweed | | Prickly lettuce (China lettuce) | | Prostrate knotweed | | Puncturevine (Tackweed, Goathead) | | Purple deadnettle (Red deadnettle) | | Purple loosestrife (Purple lythrum) | | Purslane, common | | Quackgrass | | Red sorrel (Sheep sorrel) | | Redroot pigweed (Rough pigweed) | | Redstem filaree (Stork's bill, Crane's bill) | | Reed canarygrass | | Russian thistle (Tumbleweed) | | Ryegrass, annual (Italian ryegrass) | | Salsify (Goatsbeard) | | Scotch broom | | Shepherd's-purse | | Smartweeds | | Sowthistle, annual and perennial | | Speedwells | | Spurges (Prostrate spurges) | | St. Johnswort, common (Goatweed, Klamathweed) | | Stinging nettle | | Tansy ragwort | | Tumblemustard (Jim Hill mustard) | | Velvetgrass (Common velvetgrass) | | Velvetleaf | | Water primrose | | Waterhemlock, western | | Wild carrot (Queen Anne's lace) | | Yellow nutsedge |
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Caption: Common chickweed leaves and flowers
Photo by: R. Parker
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Weeds : Chickweed, common and mouseear : Stellaria media, Cerastium fontanum ssp. vulgare
(revision date: 4/7/2021)
Family: Caryophyllaceae
Cycle: Annual, Perennial
Plant Type: Broadleaf
Use Integrated Pest Management (IPM) for successful weed management.
Biology
COMMON CHICKWEED reproduces both by seeds and by many creeping stems which can root at the nodes. While the plants can grow upright, they more commonly form prostrate mats. The bright green, hairless leaves are typically rounded, tapering to a point at the tip. Leaves may reach up to one inch or more in length and are in opposite pairs along the stems. Leaf petioles are hairy and may be lacking on upper leaves. Main stems and branches have a conspicuous line of hairs along one side. The 1/4-inch flowers are star-shaped, with five white petals that are deeply notched at the tips.
MOUSEEAR CHICKWEED is a perennial plant that can reproduce by seeds and by prostrate stems that root at the nodes to form mats. Overall plant size is usually two to six inches in height with equal or greater spread (plants are typically prostrate). The oblong leaves are opposite on the stems, and both leaves and stems are hairy. Leaves have a distinctive midvein. The small star-shaped flowers have five white petals which are slightly notched at the tips.
SPECIAL INFORMATION: Common chickweed grows vigorously in cool weather, producing seeds throughout the winter in mild regions. Mouseear chickweed can be a problem in lawns, where it grows rapidly to fill areas damaged by disease or mechanical injury. Mowing is not effective for control of mouseear chickweed in lawns, as it encourages plants to develop more vigorous prostrate growth.
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Habitat
Common and mouseear chickweed are weeds of gardens, fields, new (unestablished) lawns, flower beds, ornamental plantings, and other areas with rich soils. They grow best in cool, moist locations.
Non-Chemical Management
- Maintaining a healthy planting or turf area to provide competition will prevent weed establishment.
- Hand-pull to eliminate weeds.
- Apply organic mulches, such as bark, compost, grass clippings, straw, and other materials, in a layer from two to several inches thick for effective weed management.
Select non-chemical management options as your first choice!
Chemical Management
Apply according to label directions. Glyphosate products should be used as spot treatments only! NOTE: Some ingredients listed here are only available in combination. Read the label carefully on combination products to make sure the product is suitable for your specific situation.
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Images
+ Show larger images
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Caption: Common chickweed leaves and flowers
Photo by: R. Parker
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Caption: Mouseear chickweed
Photo by: J.A. Kropf
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Caption: Common chickweed flower
Photo by: T. W. Miller
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Caption: Common chickweed fruits and stem
Photo by: T. W. Miller
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Caption: Common chickweed prostrate mat
Photo by: T.W. Miller
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Caption: Mouseear chickweed opposite leaves
Photo by: J.A. Kropf
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Caption: Mouseear Chickweed
Photo by: T.W. Miller
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Caption: Mouseear chickweed
Photo by: T.W. Miller
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