Brunnera macrophylla Frostbite

Scientific Name : Brunnera macrophylla

Common Name : Great Forget-Me-Not

Hardiness Zone : 4a - 9a

Hardiness Degree : -25°F (-32°C)

Blooming Season : Spring

Plant Habit : Mounded

Characteristics : Attracts Bees, Deer Resistant, Rabbit Resistant, Water/Rain tolerant, Colorful/Attractive Foliage, Shade Tolerant, Low Maintenance, Frost Tolerant

Water : Medium

Fertilizer : Once a month

Spacing : 15 - 18" (38 - 46cm)

Height : 6 - 9" (15 - 23cm)

Width : 13 - 16" (33 - 41cm)

Exposure : Shade

General Information : Low-maintenance Frostbite brings attractive silver foliage to the shade for years of enjoyment. Mixes seamlessly into a wide range of shade garden designs. Bright blue flowers are an extra bonus in Spring!

Idea & Tips : Plant in well-drained soil in a shaded location. Spent flowers may be removed to keep plants looking tidy. Fertilize Spring and Summer to keep plants healthy and actively growing. Remove old foliage in Fall or early Winter once plants have gone dormant.

Grower Information : Perfect balance of silver-to-green foliage for shade gardens.

Great late-season performer, holding its striking pattern with minimal browning.
Heart-shaped leaves are slightly smaller, allowing production in smaller containers as well as providing a nice texture in the landscape.
Deer and rabbit resistant; frost tolerant.
Produces bright blue flowers in Spring.

'Frostbite'

Protection Information : PP35,059

(Flowering Only License)

Breeder : Darwin Perennials

Propagation Guide
- Media EC/pH:
  
  EC 0.75-0.80 mmhos/pH 5.8-6.2
  
  Soil Temperature:
  
  68-72°F (21-22°C)
  
  Rooting Hormone:
  
  None
  
  Mist:
  
  Low mist or tenting
  
  Fertilization:
  
  Balanced fertilizer 75-100 ppm
  
  Pinching:
  
  None
  
  Transplanting:
  
  7-8 weeks
  
  Comments:
  
  This is a tissue culture raised item. Please see our detailed tissue culture propagation guide at darwinperennials.com. This item is generally a Summer propagated item. Excessive heat can cause losses.
Finishing Guide
- Media pH:
  
  5.8-6.2
  
  Temperature:
  
  Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C)
  
  Light Level (fc):
  
  1,500 to 2,500
  
  Vernalization:
  
  Yes, required for flowering; however, plants sell as foliage.
  
  Daylength:
  
  Day length neutral
  
  Watering:
  
  Allow media to dry slightly between watering.
  
  Fertilization:
  
  Use a balanced fertilizer at a rate of 100 to 125 ppm.
  
  Pinch After Transplant:
  
  None
  
  Plant Growth Regulators:
  
  PGRs generally not needed
  
  Pests and Fungal Diseases:
  
  Pythium and rhizoctonia can result from overwatering.
Crop Scheduling
- 1–qt. (10–cm) pot, 1 plant per pot:
  
  Not recommended
  
  1–gal. (15–cm) pot, 1 plant per pot:
  
  10-12 wks
  
  2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot:
  
  12-14 wks
  
  Bloom Months:
  
  April to May

Brunnera macrophylla Frostbite

Download Culture Guide