Helleborus, Hellebore, Lenten Rose 'Onyx Odyssey'

Helleborus

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Helleborus (hel-eh-BORE-us)
Synonym
Helleborus x hybridus
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Provides Winter Interest
Height
12-18 in. (30-45 cm)
Spacing
18-24 in. (45-60 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)
Danger
N/A
Bloom Color
Dark Purple/Black
Bloom Time
Late Winter/Early Spring
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
Flowers are good for drying and preserving
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Richmond, California

Fallston, Maryland

Cincinnati, Ohio

Portland, Oregon

Poulsbo, Washington

Spokane, Washington

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Gardener's Notes:

1
positive
1
neutral
0
negative
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N
Portland, OR (Zone 8b) | February 2016 | positive

These plants may be listed under the same cultivar but it is best to choose them based on their blooms. They're all from the same strain ...Read More

A
Washington, DC | April 2013 | neutral

I planted seeds from onyx hellebore this spring. Will they germinate?

Featured
Long-nosed Weevil
(Rhinotia hemistictus)
Crested Pigeon
(Ocyphaps lophotes)
Featured
Long-nosed Weevil
(Rhinotia hemistictus)
Crested Pigeon
(Ocyphaps lophotes)