Water
Water regularly during the growing season, keeping the soil consistently moist but not waterlogged. Reduce watering in winter when the plant is dormant. Ensure good drainage to prevent root rot.
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Bulbous Comfrey (Symphytum bulbosum) is a perennial herb with a bulbous root, known for its early spring flowers and vigorous growth. It is not typically cultivated for o
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least 6 hours of direct sunlight daily, but tolerates some shade, especially in hotter climates.
Regular
75% intensity
Keep soil consistently moist during the growing season, but avoid waterlogging. Reduce watering when dormant.
Well-drained, fertile soil
50% intensity
Hardy
50% intensity
Thrives in moderate temperatures. Tolerant of cold and heat once established.
Outdoor
50% intensity
Moderate
50% intensity
Benefits from regular feeding during the growing season with a balanced fertilizer or compost.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 4/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Contains pyrrolizidine alkaloids, which can cause liver damage. Toxic to pets and humans.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly during the growing season, keeping the soil consistently moist but not waterlogged. Reduce watering in winter when the plant is dormant. Ensure good drainage to prevent root rot.
Cut back spent flower stalks to encourage reblooming and prevent self-seeding. In late autumn or early spring, remove dead or damaged foliage to maintain plant health and shape.
This also prepares it for the next growing season.
Propagate by division of the root clumps in early spring or autumn. Seeds can also be sown in spring, but germination may be erratic. Division is the most reliable method for maintaining desired characteristics.
Repot mature plants every 2-3 years into a larger container, or divide them to prevent overcrowding and rejuvenate the plant. This is best done in early spring before new growth emerges.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Bulbous Comfrey (Symphytum bulbosum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Symphytum |
| Species | Symphytum bulbosum |
Similar in genus Symphytum
Answers based on plant encyclopedia data
