Life Span
Perennial
Annual and Perennial
Type
Broadleaf Evergreen
Vegetable, Vines
Origin
Europe, Russia
North America, Mexico, Central America
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Winter squash, Field pumpkin, Crookneck pumpkin
Number of Varieties
28
0
40000
👆🏻
Habitat
Cold Regions, stream banks
close to waterfalls, Riverbanks, Warmer regions, waterways, Wet ground
USDA Hardiness Zone
6-111-6
0
99
👆🏻
AHS Heat Zone
-
12-1
Sunset Zone
21,22
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Vining/Climbing