Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tender Perennial
Origin
Europe, Russia
North America, Mexico, Latin America and the Caribbean, Caribbean, Central America, South America
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Cryptanthus 'Absolute Zero'
Cryptanthus 'Agate'
Cryptanthus 'Alberta'
Cryptanthus 'Alpine Frost'
Number of Varieties
2480
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Lowland evergreen rainforest, Rainforest, Shaded sites, Wild
USDA Hardiness Zone
6-11-9999
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
21,22
-
Habit
Upright/Erect
-