Photo by Melody

PlantFiles: Russian Comfrey
Symphytum x uplandicum

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Family: Boraginaceae
Genus: Symphytum (sim-FY-tum) (Info)
Species: x uplandicum (up-LAN-dee-kum) (Info)

One vendor has this plant for sale.

19 members have or want this plant for trade.

Category:
Perennials

Height:
6-8 ft. (1.8-2.4 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Pink
Blue-Violet
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Foliage:
Grown for foliage
Herbaceous

Other details:
Requires consistently moist soil; do not let dry out between waterings
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Baa
Thumbnail #1 of Symphytum x uplandicum by Baa

By kniphofia
Thumbnail #2 of Symphytum x uplandicum by kniphofia

By kennedyh
Thumbnail #3 of Symphytum x uplandicum by kennedyh

By kennedyh
Thumbnail #4 of Symphytum x uplandicum by kennedyh

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Baa On Sep 10, 2001, Baa wrote:

This is the best species for all your liquid compost making.

Widely naturalised in Europe, this is a large perennial covered with stiff hairs. Has broad lance shaped, mid green leaves upto 10 inches long. Bears drooping cymes of usually blue, tubular, small flowers.

Flowers April - June

Spreads to over 4ft and is difficult to get rid of as the tap root can extend over ten feet on mature plants. Likes moist, slightly fertile soil in partial shade although will tolerate sun.

Steep leaves in water until decayed for liquid fertilizer and then dialute to 1 part comfrey liquer to 20 parts water.

Regional...

This plant has been said to grow in the following regions:

,
Morse, Louisiana
Wytheville, Virginia



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