Life Span
Perennial
Perennial
Type
Herbaceous Perennial
Broadleaf Evergreen
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Canada, Eastern Asia, India, Nepal, China, Japan, Korea
Europe, Russia
Types
-
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
12
0
40000
👆🏻
Habitat
Cliffs, Moist woods, Riverbanks
Cold Regions, stream banks
USDA Hardiness Zone
5-96-11
0
99
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AHS Heat Zone
9-5
-
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
21,22
Habit
Upright/Erect
Upright/Erect