Heliopsis, also known as false sunflower, is a hardy perennial that thrives in poor, well-drained soil. These plants produce bright yellow, daisy-like flowers, blooming from mid-summer to fall.

Plant seeds on soil surface, gently pressing them into the soil without covering them. Columbine is perennial and self-sows ... Marginally hardy plants like butterfly ginger are also best planted ...

trees and perennials that thrive in wet soil. Trees and shrubs that do well in moist conditions include salix, cornus, betula, sambucus, liquidambar, ash and amelanchier. Create a bog garden ...

They also can improve garden soil like other nitrogen-fixing legume plants. A close relative of common peanuts, perennial peanuts don’t produce edible seeds, but their vivid, yellow flowers are ...