Tuberous Comfrey

Symphytum tuberosum

Family: Boraginaceae
Genus: Symphytum (sim-FY-tum) (Info)
Species: tuberosum (too-ber-OH-sum) (Info)

Category:

Groundcovers

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Sun Exposure:

Sun to Partial Shade

Foliage:

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Height:

18-24 in. (45-60 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

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)

Where to Grow:

Unknown - Tell us

Danger:

Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Other details:

May be a noxious weed or invasive

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Sep 10, 2001, Baa wrote:

Coarse, hairy perennial from Europe and North West Turkey. Has large ovate (egg-shaped), dark green leaves up to 10 inches long. Bears tubular, pale yellow flowers on spiralled cymes.

Flowers March - May.

Needs well drained, moderately fertile, moist soil in full sun or partial shade.

May be nibbled a bit by slugs and snails but they prefer softer leaves.

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