Get Wild Go Native ! Do it on the Rooftop :)
just some examples of how to look up your native plants, on your next hike through woods you will be able to identify wildflowers/plants, maybe find some that would fit in your native gardening plan.
or just search what’s blooming now in your region, hint all cultivated hybrids that i know came from wildflowers originally. it’s much easier to grow when you are not fighting the natural habitat of the plants.