Life Span
Type
Origin
Types
Number of Varieties
Habitat
USDA Hardiness Zone
AHS Heat Zone
Sunset Zone
Habit
South-Central United States
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas, Mexico, Caribbean
marshes, Riverbanks, Sandy areas, Tropical rainforest
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24