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Tuberous Comfrey

Symphytumtuberosum

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Genus

Symphytum (sim-FY-tum)

Info

Species

tuberosum (too-ber-OH-sum)

Info

Synonym

Sun Exposure

Sun to Partial Shade

Foliage

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)

Danger

Unknown - Tell us

Bloom Color

Bright Yellow

Bloom Time

Late Spring/Early Summer

Other Details

Gardener's Notes:

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negative

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Baa

| September 2001 | neutral

Coarse, hairy perennial from Europe and North West Turkey. Has large ovate (egg-shaped), dark green leaves up to 10 inches long. Bears ...Read More

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