Water
Keep soil consistently moist, especially during dry periods. Avoid waterlogging, which can lead to root rot. Water deeply when the top inch of soil feels dry.
Also known as Blue Comfrey · Caucasian Comfrey · Comfrey
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Caucasian Comfrey (Symphytum caucasicum) is a vigorous perennial herb with attractive blue flowers and large, hairy leaves. It spreads readily and can become invasive.
At-a-glance light, water, soil, and growing conditions from plant data
Prefers full sun to partial shade.
60% intensity
May flower best with adequate sun.
Keep soil consistently moist, but avoid waterlogging.
70% intensity
Water when the top inch of soil feels dry.
Adaptable to most soil types, but prefers fertile, well-drained soil. Tolerates clay and moist conditions.
50% intensity
Thrives in moderate temperatures.
50% intensity
Ideal growing range is 15-25 °C.
Outdoor
50% intensity
Fertilize in spring with a balanced, slow-release fertilizer.
40% intensity
Avoid over-fertilizing.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep soil consistently moist, especially during dry periods. Avoid waterlogging, which can lead to root rot. Water deeply when the top inch of soil feels dry.
Deadhead spent flowers to prevent self-seeding and encourage further blooming. Cut back the plant hard in late autumn or early spring to manage its size and encourage fresh growth.
Easily propagated by division of clumps in spring or autumn. Can also be grown from seed, though cultivars may not come true. Stem cuttings can also be taken.
Not typically grown in pots. If container-grown, repot every 2-3 years into a larger pot with fresh potting mix to refresh nutrients and prevent root-bound conditions.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Symphytum Caucasicum (Symphytum caucasicum)
Where Symphytum Caucasicum (Symphytum caucasicum) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Symphytum |
| Species | Symphytum caucasicum |
Similar in genus Symphytum
Answers based on plant encyclopedia data
