Hey everyone! I'm currently studying horticulture and working on a project about plants that specifically attract certain insects. For example, I've learned that ragworts are a food source for cinnabar moth caterpillars and that Great Mullein provides nesting material for wool carder bees. I'm looking for detailed resources on this topic. When I search online, I find a lot of general info about plants good for insects, but I'm hoping for something more specific. Any insights or sources you can recommend? Thanks a bunch!
3 Answers
Don't forget to consider your specific region within the country! It’s crucial to choose plants that are native to your area as they’ll be better at attracting local insects. Have you pinpointed your geography yet?
A great starting point is to look into the native keystone species in your area! In the US, oaks, willows, prunus, and goldenrod are some of the big hitters. You’ll find there's tons of information on specialist pollinators that depend on these plants. Milkweed is particularly famous as the host plant for monarch butterflies, and I recommend focusing on butterflies since there’s a wealth of data on which species are local and their host plants.
It really helps to know your location! There are definitely resources out there in the US for identifying plants that attract specialist pollinators. The Xerces Society is a fantastic place to dive in and learn more about it.

I’m in the Midwest! Thanks for the suggestion, I’ll focus on native plants for the region.