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Shepherd's-purse is a winter annual. It forms basal leaves as well as alternating stem leaves. The basal leaves are deeply lobed, pointing away from the base. The root of shepherd's-purse is a slender taproot, combined with secondary fibrous roots. The flowers of shepherd's-purse are white and borne on erect stems that can branch sparingly. The flowers will appear in terminal clusters. The heart-shaped fruit |
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is a 2 part flattened pod, on individual petioles. The seedpods develop along the erect stems. Flowering can occur from April to September. Shepherd's-purse spreads by seed. Shepherd's-purse is found throughout the United States. |
| Integrated Pest Management Control Recommendations: |
Cultural Practices:
Shepherd's purse does not compete with an actively growing turf stand.
It will develop in areas that have been damaged over the summer and have
not filled in during the fall. Fall seedlings that have not completely
developed are susceptible to shepherd's purse invasion over the winter.
The plant dies quickly after producing its seedhead in the spring. Proper
mowing will reduce seed production, as the seedhead is erect.
Herbicide
Use:
Make your postemergent herbicide application to shepherd's purse that
is actively growing and that is in the seedling to flower stage of growth.
University Links | Gordon's Recommendations | Germination Dates
