Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Flowering Plants
Origin
Europe, Russia
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
-
Number of Varieties
260
0
40000
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Habitat
Cold Regions, stream banks
Loamy soils, meadows, moist forests
USDA Hardiness Zone
6-115-8
0
99
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AHS Heat Zone
-
8-1
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21, 22, 23
Habit
Upright/Erect
Upright/Erect