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Gardeners Urged to Protect Caterpillars' Habitat for Healthier Ecosystems
4 Nov, 2025
Summary
- Caterpillars need safe habitat to pupate, not just food sources
- Mowing or walking under trees crushes caterpillars that feed birds and other wildlife
- Allowing leaf litter and planting native groundcovers provides "soft landing" for caterpillars
As of November 4th, 2025, gardeners are being urged to rethink their landscaping practices to better protect caterpillars and the vital role they play in healthy ecosystems. While many gardeners focus on planting the "right" nectar and pollen-rich plants to support pollinators, entomologist Doug Tallamy emphasizes the importance of also providing safe habitats for caterpillars.
Caterpillars are a crucial food source for birds, reptiles, and other wildlife. They feed on the leaves of trees and then drop to the ground to pupate. However, if the area under the trees is regularly mowed or walked on, these pupating caterpillars are at risk of being crushed. To create a "soft landing" for the caterpillars, Tallamy recommends allowing leaf litter to accumulate naturally under trees and planting native groundcovers, ferns, and other plants that will support the local food web.
By making these simple changes, gardeners can ensure the survival of caterpillars and the many species that depend on them. This, in turn, will contribute to a healthier, more balanced ecosystem in their own backyards.
