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Helleborus 'Blackthorn Strain'

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Photo Courtesy of Walters Gardens, Inc.
 Common Name: Lenten Rose
Common Name (Alternative): Hellebore

2005 Perennial Plant of the Year--Helleborus x hybridus

Considered by leading horticulturists to be the very best hybrid strain available in the industry today. Unlike many other cultivars where the leaves may hide the flowers, the 'Blackthorn Strain' holds its large, somewhat flat flowers up above the foliage and they are outward-facing. The petals are kiwi-green on top, while the undersides and stems are flushed with mauve-rose.

Equally outstanding is the rugged, grey-green, serrated foliage. It is tough enough to stand up under the weight of the snow, ensuring a beautiful display come spring.

Hellebores are the harbingers of spring, blooming for six weeks or more beginning in late winter. They are often flowering during the Christian season of Lent, from which they get their common name, Lenten Rose. This is the perfect plant for naturalizing in moist, woodland areas where its extensive root system will spread as far as it is allowed.

Characteristics:



Height:
  12-18 Inches
Spread:
  24-30 Inches
Flower Color:
  Green shades
Foliage Color:
  Green shades
Hardiness Zone:
4,5,6,7,8,9
Find Your Zone
Sun or Shade?:
  Part shade (4-6 hrs. direct sun)
  Full shade (< 4 hrs. direct sun)
Wet or dry?:
  Low water needs
  Average water needs
Need critter resistant plants?:
  Deer resistant
  Rabbit resistant
How fast should it grow?:
  Slow
When should it bloom?:
  Early Spring
  Mid-spring
How's your soil?:
  Average Soil
  Fertile Soil
Sweet or Sour Soil?:
  Neutral Soil (pH = 7.0)
  Alkaline Soil (pH > 7.0)
What's your garden style?:
  Container/Patio
  Woodland/Shade
  Eclectic

Attributes:

Border plants
Container
Cut flower or foliage
Drought Tolerant
Evergreen
Mass Planting
Salt Tolerant
Easy to grow

Homeowner Growing & Maintenance Tips:

Hellebores are enjoyable to grow because they are low-maintenance and disease/pest-free.  Simply trim back last year's foliage in the spring.  They can adapt to almost any growing conditions.  Though they prefer rich, moist, organic soil, they will also grow in sandy or clay soil.  They can even tolerate short periods of drought.  The soil pH can range anywhere from slightly acidic to slightly alkaline. 

Hellebores are shade plants that need to be protected from the hot afternoon sun.  They will grow in full shade under large deciduous trees as long as they receive full sun from winter to spring before the trees get their leaves. 

To increase the number of hellebores in your garden, mulch them heavily in the fall.  The new seedlings will grow in this mulch come spring and can then be transplanted elsewhere in the garden.  WARNING: Hellebores are poisonous. Do not consume any part of the plant!


Companions:

Common/Botanical Name
Zones  
Aquilegia vulgaris 'Grandmother's Garden'
Common Name: Columbine
3,4,5,6,7,8,9
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Myosotis sylvatica 'Royal Blue Compact'
Common Name: Forget-Me-Not
3,4,5,6,7,8
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Corydalis 'Blackberry Wine'
Common Name: Corydalis
5,6,7
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Tiarella 'Spring Symphony' PP12397 COPF
Common Name: Foamflower
4,5,6,7,8,9
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Pulmonaria 'Raspberry Splash' PP12138
Common Name: Lungwort
3,4,5,6,7,8,9
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Asarum splendens
Common Name: Ginger-Chinese Wild
(5),6,7,8,9
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Hosta 'Dancing in the Rain' PP15977
Common Name: Hosta
3,4,5,6,7,8,9
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Heuchera 'Strawberry Candy' PP12195
Common Name: Coral Bells
3,4,5,6,7,8
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Dicentra eximia
Common Name: Bleeding Heart-Fringed
3,4,5,6,7,8,9
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Fun Facts:

In popular legend, Lenten Rose were blooming outside the stable in Bethlehem, hence the name "Lenten" rose. However, Hellebores aren't native to that area.

While every effort has been made to describe this plant accurately, please keep in mind that the height, bloom time, and color may differ in various climates throughout the country. The description of this plant was written based on our experience growing it in Michigan (USDA hardiness zone 5) and on numerous outside resources.