Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
Northeastern United States, Mid-Atlantic United States, North-Central United States, Central United States, Canada
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
it is a type of birch
Number of Varieties
23
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Hillside, Mountain tops
USDA Hardiness Zone
6-114-7
0
99
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AHS Heat Zone
-
7-1
Sunset Zone
21,22
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16
Habit
Upright/Erect
Pyramidal