Life Span
Perennial
Annual and Perennial
Type
Broadleaf Evergreen
Grass
Origin
Europe, Russia
North America, United States, Western United States, Southwestern United States, Mexico
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Bouteloua gracilis
Number of Varieties
214
0
40000
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Habitat
Cold Regions, stream banks
Open Plains, Prairies
USDA Hardiness Zone
6-113-9
0
99
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AHS Heat Zone
-
9 - 5
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 7, 8, 9, 10, 11, 14, 18, 19, 20, 21
Habit
Upright/Erect
Clump-Forming