As a landscape designer, this is my favorite perennial shade plant. They can take some sun, but usually not full sun, and do quite well in open shade. I have many different types and am always on the lookout for new or unusual ones.
They are best planted near a walkway, patio, or, for the smaller ones, in a container to better see and appreciate the details of the small flowers. As of December 5, 2012, I have three different Toads that are still blooming. Most have already finished for the season.
Light requirements: part sun, shade
Soil: moist fertile soil
Sizes: varies from 6" to 4' tall; some can spread out into a 3' wide patch over time.
Found in: better garden centers and nurseries.