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When to cut back asparagus—timing by zone, frost, and fern color; autumn asparagus ferns with light frost in garden bed.
Vegetable Gardening & Yard Care

When to Cut Back Asparagus Timing by Zone and Frost and Fern Color

Knowing when to cut back asparagus can make all the difference between a so-so patch and a thriving harvest year after year. Wait until the ferns turn yellow or brown after frost, then trim them back and mulch well to protect the crowns, reduce pests, and set the stage for bigger spears next spring.