trefle.io · Taken Apr 24, 2019 by Dieter Wagner (cc-by-sa)
Boraginaceae
Healingherb
Symphytum officinale
Also known as Comfrey, Knitbone, Common comfrey
Native Plants · Edibles & Herbs · Comfrey · Medicinal · Herb · Perennial · Healing · Robust · Traditional · Vigorous · Leaves · Hardy
Comfrey is a robust perennial herb that grows vigorously in rich, moist soil with minimal care required. Plant in partial shade to full sun and water regularly during establishment, then it becomes quite drought tolerant. The large leaves can be harvested for traditional medicinal uses and the plant self-seeds readily.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Deep watering to encourage root development, allow soil to dry slightly between waterings · Weekly or when soil feels dry
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-10b
Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alberta, Altay, Argentina Northeast, Arkansas, Austria, Baltic States, Belarus, Belgium, Brazil West-Central, British Columbia, Bulgaria, California, Central European Rus, China North-Central, China Southeast, Chita, Colorado, Connecticut, Czechoslovakia, Delaware
- Attracts
- Bees
Sources: trefle, usda
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