From the Forest Preserves of Cook County:

Most people know that monarch caterpillars only eat milkweed plants, however, adult monarch butterflies also need excellent flower nectar sources to fuel their North and South migrations, as well as when they are mating and laying eggs. We will discuss some of the best native plant species for your yard to help monarch butterflies spring to fall.

Registration Required: Call Trailside at 708-366-6530.