One perennial zinnia companion plant that should be on your list of must-haves is the pretty coreopsis because it truly is a pollinator magnet. Zinnias are annuals, so you have to sow fresh seeds ...

Coreopsis (Coreopsis spp.) is a cheerful perennial that produces daisy-like flowers in bright shades of yellow, pink, and red ...

but this hybrid won’t reseed as the basic Coreopsis species will. If you want to grow a brightly colored, bird-shaped flower, the Bird-of-Paradise is your plant. This herbaceous perennial ...