Looking for free plants? These perennials self sow. Garden writers talk about ‘polite’ and ‘aggressive’ self sowers. These are nice plants. Seeds self sow and new plants pop up. If they appear in an undesirable spot, you can easily relocate or remove them.
Black-eyed Susan (Rudbeckia hirta) is not only Maryland’s state flower but stunningly easy to grow in sun or partial shade.
Blue mist flower (Conoclinium coelestinum) blooms in fall and thrives in sun and partial shade. It prefers moist soils. Please note the Missouri Botanical Garden, worldwide expert of all things plants, does call this plant aggressive in certain areas. That has not been my experience in the mid-Atlantic but if you have had a different experience, please let us know in the comments!
Celandine Poppy (Stylophorum diphyllum) is the native poppy that blooms in early spring in partial to deep shade.
Eastern Columbine (Aquilegia canadensis) is a sparkling spring flower in partial and full shade. In my experience the plants that seed sow always grow the largest as compared to the store bought originals.
Golden ragwort (Packera aurea) blooms in spring, has a long bloom period and provides good ground cover through the summer.
For more information: