Fine Herbs

Comfrey

Robust perennial comfrey with large foliage and bell-shaped flowers much loved by bees. A useful plant for the natural garden, in permaculture, and as a source of biomass.
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Exposure
Full sun to partial shade
Hardiness
Zone 3

Discover the plant

Common nameComfrey
FamilyBoraginaceae
TypeHerbaceous perennial
Botanical nameComfrey

Comfrey is a robust perennial plant, recognized for its large, slightly rough foliage and its flowering in small, drooping bell-shaped flowers, often mauve, pink, white, or bluish depending on the variety. It brings a natural and rustic style to medicinal herb gardens, edible landscapes, perennial borders, and pollinator-friendly spaces. Its vigorous growth makes it an interesting plant for quickly adding volume, texture, and a generous presence to the garden.

Easy to cultivate, comfrey prefers a location in sun or partial shade, in rich, cool, deep, and well-drained soil. It appreciates soils that retain some moisture and can become imposing once established, so it is best to reserve enough space for it. Its dense foliage can be cut during the season and used in the garden as plant material for compost, mulch, or natural horticultural preparations.

Traditionally recognized as a medicinal plant, comfrey is mainly appreciated today for its ecological role, its melliferous flowering, and its usefulness in the garden. It attracts bees and other pollinators, while integrating perfectly into natural gardens, productive vegetable patches, and wilder areas of the land. It is an ideal perennial for gardeners looking for a useful, resistant, decorative, and characterful plant.

Comfrey

Planting guide

From planting to establishment.

Propagation Root division or cuttings

Soil and care

The right care,at the right time.

Soil pH

Slightly acidic to neutral

Minimum temperature

-30°C

Care level

Easy

Watering

Regular; keep the soil cool without waterlogging

Soil type

Deep, fertile, cool, and well-drained soil

Fertilization

Compost in spring; fertilization generally unnecessary in fertile soil

Moisture

Average to high humidity; prefers cool, deep soil

Seasonal care

Cut the foliage several times during the season for mulch or liquid fertilizer; control its spread and prevent self-seeding

Container growing

A garden,within reach.

Pot culture is only possible in a very large and deep container.
Comfrey

Bloom and dimensions

Its place,in your garden.

Mature height

60 to 120 cm (24 to 48 inches)

Width / spread

60 to 90 cm (24 to 36 inches)

Flower color

Rose, mauve, purple or white depending on the cultivar

Foliage color

Green

Foliage type

Obsolete

Growth rate

Rapid growth

Bloom period

Late spring to summer

Harvest

Spring to autumn leaves for horticultural use
Comfrey

Garden associations

In goodcompany.

Companion plants

Fruit trees, berries, rhubarb, asparagus

Plants to avoid

None known, but watch out for its expansion

Wildlife and pets

Life,around your plants.

Supporting wildlife

Bees, butterflies, beneficial insects