50 Seeds Aquilegia Canadensis Canadian Eastern Red Columbine This is one of the most beautiful butterfly plants that you can find. It grows to about a foot and a half tall and likes to live in the full sun but can tolerate partial shade. I like this plant for its attractive drooping bell like flowers. This is the host plant for the Columbine Duskywing butterfly, and a nectar source for several other butterflies. It is worth mentioning that this is one of the best hummingbird plants in the world. USDA Hardiness Zones 3 to 8.