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Henbit

(More Lawn Weeds) Henbit Lamium amplexicaule Life cycle Winter annual, less than 12-in. tall; noticeable in spring for pink to purple flowers. Growth habit Square stems; leaves opposite, scalloped, and rounded; lower leaves with petioles, upper leaves half encircling the stem; pinkish-purple,...

Hairy bittercress

(More Lawn Weeds) Hairy bittercress Cardamine hirsuta Hairy bittercress going to seed Life cycle Primarily a winter annual. Growth habit Basal rosette of pinnate leaves; 1-3 pairs of leaflets with terminal, larger leaflet; tiny, 4-petaled white flowers in clusters at top of stems, followed by...

Garlic mustard

Back to Invasive Plant Photos and Information Garlic mustard * Alliaria petiolata Life cycle: Biennial invasive prefers shady forest and floodplain. Growth habit: Round to kidney-shaped leaves in rosettes the first year. Following spring, forms erect 1- to 4-ft. shoots with more triangular leaves,...

Deadnettle

(More Lawn Weeds) Deadnettle Lamium purpureum Flowering deadnettle Life cycle Winter annual noticeable in early spring when the light purple flowers are in bloom. Dies out in late spring. Growth habit Square stems. Leaves opposite, triangular, pointed, and overlapping and crowded near top of stem...

Dandelion

(More Lawn Weeds) Dandelion Taraxacum officinale Life cycle Perennial; rosette of leaves 3- to 10-inches long with a high degree of leaf variability ranging from deeply cut to almost entire. Milky sap when broken. Yellow ray flowers borne on leafless, hollow stalks. Reproduction reproduces by wind-...

Common chickweed

(more lawn weeds) Common chickweed Stellaria media Common chickweed Life cycle Common chickweed is a winter annual that has smooth stems and leaves; can have several generations a year during cool wet seasons and forms prostrate dense patches in turf, landscape and vegetable gardens. Mouseear...

Spring Weeds

Weeds are seasonal in nature. These are the most common spring weeds found in the yard and garden in Maryland. Click on the name of the weed to view more information. Featured seasonal weeds : Spring l Summe r l Fall * indicates an invasive weed Annual bluegrass Common chickweed Dandelion...

Annual bluegrass

(More Lawn Weeds) Annual bluegrass Poa annua Annual blue grass going to seed Closeup of flower stalk Life cycle W inter annual less than 1-ft. tall. Can die out in summer. Growth habit Bunching. Reproduction Seed; enlarges by tillering. Conditions that favor growth Cool, moist conditions; compacted...

Weed Identification Photos

Featured seasonal weeds : Spring l Summer l Fall Grassy Weeds Broadleaf Weeds Woody-Vining Weeds Lawn Weeds Invasive Plant Photos and Information Important Tips for Weed Control Identify the weed! And learn about its life cycle. This will help in control. Minimize soil disturbance. Digging and...

Introduction to Invasive Plants

This information focuses on specific examples of invasive plants and their impact on people and wildlife. Gardeners Canada thistle crowds out the pussytoes that were planted in this garden bed. Garden volunteers planted the pussytoes because they are the host plant for the painted lady butterfly...

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