Symphytum bulbosum – Bulbous Comfrey

Scientific Name

Symphytum bulbosum K.F.Schimp.

Common Names

Bulbous Comfrey

Synonyms 

Symphytum zeyheri

Scientific Classification

Family: Boraginaceae
Subfamily: Boraginoideae
Genus: Symphytum

Flower

Color: Pale yellow
Bloom Time: March and April

Description

Symphytum bulbosum is a flowering plant up to 20 inches (50 cm) tall and grows from small tubers or rhizomes in wet swampy places. The petals are pale yellow and up to 1 inch (2.5 cm) long. It flowers in March and April.

Symphytum bulbosum - Bulbous Comfrey
Photo via naturamediterraneo.com

Hardiness

USDA hardiness zone 4a to 8b: from −30 °F (−34.4 °C) to 20 °F (−6.7 °C).

How to Grow and Care

Comfrey can be grown from seed, but it requires a winter chilling period to geminate. If all you want is one plant, you can usually find them for a reasonable price in the herb section of local nurseries or by mail order. Plants can go outdoors once danger of frost has passed.

When starting several plants, it is more common to use root cuttings. These are 2 to 6 inches (5 to 15 cm) lengths of root which are planted horizontally 2 to 8 inches (5 to 20 cm) deep. Plant shallow in clay soil and deeper in sandy soils.

You can also grow Comfrey from crown cuttings, but these will be more expensive. A crown cutting will include several eyes and may grow faster than root cuttings, however the difference is negligible. Crown cuttings are planted 3 to 6 inches (7.5 to 15 cm) deep.

Comfrey is widely adapted but it will thrive in a rich organic soil… – See more at: How to Grow and Care for Comfrey

Origin

Native to the Mediterranean region and it is present at an elevation of 0 to 3,281 feet (0 to 1,000 m) above sea level.

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