When can I cut back my asparagus foliage?
The asparagus foliage can be cut back to the ground after it has been destroyed by cold temperatures in fall. However, it is generally recommended that the dead foliage be allowed to stand over winter. The dead debris will catch and hold snow. Snow cover helps protect the asparagus crowns from freeze damage. Asparagus foliage allowed to remain in the garden over winter should be removed in late March or early April before spears begin to emerge.