Lawn Guardian

How to Get Rid of Shepherd's Purse

Capsella bursa-pastoris

broadleaf weedUSDA zones 2–10Active: spring, fall, winter

Cool-season annual/biennial that produces distinctive heart-shaped seed pods. One of the most common weeds worldwide, often appearing in early spring.

How to identify it

Rosette of deeply lobed basal leaves; small white 4-petaled flowers; distinctive heart/triangular-shaped flat seed pods along stem.

Treatment options

Cultural (prevention): Hand pulling

Shallow-rooted and easy to remove. Pull before heart-shaped seed pods scatter.

When: Pull in early spring before seed pod maturation

Organic: Dense turf competition

Fall overseeding and fertility prevent germination in thin turf.

When: Overseed in early fall

Chemical: Broadleaf herbicide (2,4-D)

Standard broadleaf herbicide provides easy control.

When: Apply in fall or early spring when actively growing

Active ingredient: 2,4-D — e.g. Trimec

Grass safety: always match herbicides to your grass species — products safe on Kentucky bluegrass can kill St. Augustine or centipede. Lawn Guardian checks this automatically against your lawn profile.

Stop shepherd's purse at the right moment, automatically

Lawn Guardian turns this guidance into a schedule timed to your USDA zone and this week's actual weather — and adapts every time you log what you've done.

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Related weeds

Sources: Purdue University Turfgrass Science: Use Growing Degree Days to Better Time Your Applications · University of Missouri Extension: Cool-Season Grasses: Lawn Maintenance Calendar · University of Minnesota Extension: Pre-emergent Herbicides for Crabgrass Control in Lawns