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Foxglove (Digitalis purpurea) is a popular perennial plant known for its tall spikes of tubular flowers. It adds vibrant color to gardens and attracts pollinators like bees and hummingbirds. However, to ensure its health and overwintering success, proper care and maintenance are essential, especially when it comes to cutting back.
Understanding Foxglove’s Growth Cycle
Foxglove typically blooms in late spring to early summer. After flowering, the plant enters a period of dormancy, during which it can be vulnerable to harsh winter conditions. Proper timing for cutting back can promote healthy growth and better overwintering.
When to Cut Back Foxglove
The ideal time to cut back foxglove depends on your climate and the plant’s growth stage. Generally, late fall, after the plant has finished blooming and the foliage begins to yellow, is the best time for cutting back. In milder climates, some gardeners wait until early winter.
Timing Tips for Overwintering
- Wait until the foliage turns yellow or brown, indicating the plant is finished growing for the season.
- If snow or frost is imminent, it’s best to cut back beforehand to prevent damage.
- In warmer regions, cutting back in late winter before new growth appears can be beneficial.
How to Cut Back Foxglove
Use clean, sharp scissors or pruning shears to trim the flower stalks and foliage. Remove all dead, damaged, or diseased parts to prevent pests and diseases from overwintering. Cut back to just above the crown of the plant.
Additional Tips for Overwintering
After cutting back, applying a layer of mulch around the base of the plant can help insulate the roots during cold months. In colder climates, consider covering the plant with straw or leaves for extra protection. Ensure good drainage to prevent root rot.
Resuming Growth in Spring
As temperatures warm in spring, foxglove will begin to sprout new leaves and stems. Remove mulch gradually and fertilize lightly to encourage healthy growth. With proper care, your foxglove can bloom again year after year.