Other details
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Degree to which the appearance is present
Leaf Texture (bottom)
Allow seedheads to dry on plants; remove and collect seeds
Foliage Color
Large (leaf 81-144 square inches; plant 18”-28” tall)
Leaf size: 12" long, 8.5" wide. Flower scapes 28"-32". B. Kuk/R. Torowski 2002.
This is the all green form of H. `Rocky Mountain High'(Kuk).