USDA Hardiness Zone: 4-8
AHS Heat Zone: No reliable information available.
Chill Requirement: No reliable information available.
Plant Type: Herbaceous Perennial
Leaf Type: Deciduous, but can be “evergreen” in areas with mild winters
Forest Garden Use: Herbaceous Layer, Ground Cover Layer
Cultivars/Varieties: Many subspecies and varieties, but no significant development
Pollination: Plants are dioecious, meaning they have either male or female flowers (hence the scientific name: dioica). Both male and female plants (typically a 1:8 ratio) are needed to produce seeds.
Flowering: Summer
Life Span:
No reliable information available, but not really needed. These plants spread so easily with runners and seed, that as soon as one plant dies, another will take its place.
