Chickweed does not survive winter. Their seeds do. Thousands of seeds are dropped on the surface of the soil when a plant matures. These seeds survive winter and germinate long after the adult plant is gone.
By carefully removing a thin layer of soil from the top of the bed early in the spring, you can eliminate chickweed completely. If you follow this technique, chickweeds will be gone within two seasons.
Timing is critical. If flowers or seed pods are visible on a plant, remove and dispose of the plant carefully. Seeds can be planted accidentaly during handling. Timely removal is the best method of control.