Oaks, asters and 6 other 'keystone' native species to plant for biodiversity

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University of Delaware entomologist Doug Tallamy's research has identified “keystone” plant species that make up the foundation of many U.S. ecosystems by producing food for native insects, thus supporting the ecological food web.

Even planting just one keystone plant in the yard or in a container will help restore biodiversity on your property.

Here are eight of the most important trees and plants that Tallamy, author of the new book, “How Can I Help?”, recommends (find a complete list for your ecoregion at https://homegrownnationalpark.org/keystone-plant-guides/.)