caucasian comfrey
Symphytum caucasicum
USDA zones3 to 7
SunHandles full sun to partial sun
WaterHandles moderate to moist soil
Size2 to 3 feet tall2 to 3 feet wide
- Bloom season
- Spring, summer
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Notes
Caucasian comfrey (Symphytum caucasicum) is a perennial for borders, ground cover, and low maintenance beds. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to moist soil of most types. It grows 24 to 36 inches tall and wide. It blooms in early to late spring and again in early to late summer.
Pairs well with Hardy geranium, Siberian iris, and Marsh spurge.