Life Span
Type
Origin
Types
Number of Varieties
Habitat
USDA Hardiness Zone
AHS Heat Zone
Sunset Zone
Habit
North America, Alaska, Canada
Dappled Shade, Hedge, Sunny Edge, Woodland Garden
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
North-Central United States, Central United States, Western United States, Texas
Blue Toadflax, Old-Field Toadflax
1a, 1b, 2a, 2b, 3a, 3b, 10