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Helleborus × sternii Blackthorn Strain


Hybrid Hellebore

USDA Zone: 6-9

Plant number: 1.256.850


This excellent hybrid strain forms clumps of deeply-cut grey-green foliage with exotic bold veining and marbling. In early spring, upright purple stems hold sprays of small nodding green flowers, flushed with pink. Performs best in regions with a mild maritime climate. Gardeners in colder climates would be wise to mulch around the base of the clump with leaves in very late fall. Plants should be trimmed only right after blooming, if at all. Plants prefer some direct sun with protection from afternoon heat. Evergreen. CAUTION: Harmful if eaten/Skin irritant.

Further details for
Helleborus × sternii Blackthorn Strain

Optimal Growing Conditions

Sun Exposure
  Full Sun or
  Partial Shade
Soil Type
  Normal or
  Sandy
Soil pH
  Neutral or
  Alkaline or
  Acid
Soil Moisture
  Average or
  Moist
Care Level
  Easy
Appearance and Characteristics

Flower Colour
  Green
  Light Pink
Blooming Time
  Early Spring
  Mid Spring
  Late Spring
  Late Winter
Foliage Color
  Deep Green
  Grey Green
  Variegated
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Alpine & Rock
  Border
  Containers
  Cut Flower
  Deer Resistant
  Edging
  Rabbit Resistant
  Evergreen
  Massed
  Specimen
  Woodland
Flower Head Size
  Small
Height
   30-50 cm
   12-20 inches
Spread
   30-45 cm
   12-18 inches
Foot Traffic
   None

Growth Rate
   Slow
Disclaimer: This information is presented for reference only. This plant is not currently part of our Heritage Perennials lineup.












Helleborus × sternii Blackthorn Strain


Hybrid Hellebore

USDA Zone: 6-9

Plant number: 1.256.850


This excellent hybrid strain forms clumps of deeply-cut grey-green foliage with exotic bold veining and marbling. In early spring, upright purple stems hold sprays of small nodding green flowers, flushed with pink. Performs best in regions with a mild maritime climate. Gardeners in colder climates would be wise to mulch around the base of the clump with leaves in very late fall. Plants should be trimmed only right after blooming, if at all. Plants prefer some direct sun with protection from afternoon heat. Evergreen. CAUTION: Harmful if eaten/Skin irritant.

Further details for
Helleborus × sternii Blackthorn Strain

Optimal Growing Conditions

Sun Exposure
  Full Sun or
  Partial Shade
Soil Type
  Normal or
  Sandy
Soil pH
  Neutral or
  Alkaline or
  Acid
Soil Moisture
  Average or
  Moist
Care Level
  Easy
Appearance and Characteristics

Flower Colour
  Green
  Light Pink
Blooming Time
  Early Spring
  Mid Spring
  Late Spring
  Late Winter
Foliage Color
  Deep Green
  Grey Green
  Variegated
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Alpine & Rock
  Border
  Containers
  Cut Flower
  Deer Resistant
  Edging
  Rabbit Resistant
  Evergreen
  Massed
  Specimen
  Woodland
Flower Head Size
  Small
Height
   30-50 cm
   12-20 inches
Spread
   30-45 cm
   12-18 inches
Foot Traffic
   None

Growth Rate
   Slow
Disclaimer: This information is presented for reference only. This plant is not currently part of our Heritage Perennials lineup.