Tuberous comfrey
Symphytum tuberosum
Tuberous comfrey is a shade-tolerant perennial that does best in moist, humus-rich soil under partial shade. It produces clusters of pale yellow tubular flowers in spring and is largely self-sufficient once established. Avoid overwatering and divide clumps every few years to keep plants healthy.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 36″
Soil
loam
Life Cycle
Perennial
Spacing
18″
Watering Schedule
Every 7-10 Days • Water Thoroughly; Keep Soil Evenly Moist, Especially During Active Growth
Soil pH
7 – 7.5
Temperature
-20° – 85°F
Mature Spread
up to 24″
Root Depth
Medium
Foliage
Medium
Propagation: Seed, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken May 7, 2019 by Pep Secem (cc-by-sa)
No nurseries currently have this species in stock.