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PlantFiles: Hellebore
Helleborus x sternii 'Blackthorn Group'

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Helleborus (hel-eh-BORE-us) (Info)
Species: x sternii
Cultivar: Blackthorn Group

3 members have or want this plant for trade.

View this plant in a garden

Category:
Alpines and Rock Gardens
Perennials

Height:
6-12 in. (15-30 cm)

Spacing:
15-18 in. (38-45 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)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Danger:
Unknown - Tell us

Bloom Color:
Rose/Mauve
Pale Green

Bloom Time:
Late Winter/Early Spring

Foliage:
Grown for foliage
Deciduous

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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to view:

By bootandall
Thumbnail #1 of Helleborus x sternii by bootandall

By mgarr
Thumbnail #2 of Helleborus x sternii by mgarr

By growin
Thumbnail #3 of Helleborus x sternii by growin

By kniphofia
Thumbnail #4 of Helleborus x sternii by kniphofia

No details have been posted.

Regional...

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

Marietta, Georgia
Quilcene, Washington



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