- 1). Allow asparagus foliage to die before winterizing your asparagus plants. Asparagus foliage will turn brown or yellow and begin to fall back to the ground when it is dead. This usually happens after the first or second hard frost. In frost free areas the foliage will die in late winter.
- 2). Use a string trimmer or lawn mower to cut the asparagus foliage back to 2 to 3 inches tall.
- 3). Spread 2 to 3 inches of compost or well-rotted manure around the asparagus plants.
- 4). Cover the crowns (the place where growth emerges) of the asparagus plants with 4 to 6 inches of straw or chopped leaves.
- 5). Remove the straw or chopped leaf mulch in early spring before the spears emerge.
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