Prickly Comfrey
Symphytum asperum
- Native to:
- Iran, North Caucasus, Transcaucasus, Türkiye
Soghomon Matevosyan






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Boraginaceae
- Genus:
- Symphytum
- Species:
- Symphytum asperum
- USDA Symbol:
- SYAS
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 150 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- blue, pink, purple
Garden & Ecology Notes
- Wildlife Value:
- bees, bumblebees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- native to moist, fertile areas in Caucasus
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds germinate best with cold stratification. Can also be propagated easily by root division.
The above propagation data sourced from Claude AI