Dwarf Larkspur
Photo credit

ragbird, CC0, Original photo

Dwarf Larkspur

Delphinium tricorne

Its plant group hosts 11 kinds of caterpillars
Flower color
Blue, purple or white
Bloom
March to May
Height
1–3 feet
Spread
1–1.5 feet
Light
Part shade to full sun
Soil moisture
Usually moist

Typical bloom time. A plant at the store may not be in flower.

Containers
Not listed by our container sources

Native to Tennessee (state-specific source)