Life Span
Type
Origin
Types
Number of Varieties
Habitat
USDA Hardiness Zone
AHS Heat Zone
Sunset Zone
Habit
Southern Asia, Southeastern Asia, India, China, Japan, Australia
Oenanthe javanica, Helosciadium nodiflorum
Bog Garden, Cultivated Beds, Ponds
H1, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Cold Regions, stream banks