Brunnera macrophylla 'Jack Frost' PP13859 CPBR1799

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Photo Courtesy of Walters Gardens, Inc.
 Common Name: Brunnera-Heartleaf
Common Name (Alternative): Siberian Bugloss

A sight to behold! The leaves of 'Jack Frost' are intricately detailed with a crackle-like finish. Though the leaves are dark green, they have a heavily frosted overlay which allows only the green veining to show through. From mid to late spring, baby blue, forget-me-not type blossoms are held in clusters several inches above the shimmering foliage. The effect is breathtaking.

Tip for southern growers and gardeners: 'Jack Frost' tolerates heat better than the older brunnera cultivars.

Brunneras are classic perennials that are treasured for their shade tolerance and lovely blooms. They make a fantastic groundcover, though the variegated forms may be slower to spread than the species. Try growing them in containers too so they will be close at hand when you want to snip a few blooms for a spring bouquet.

Intro Year: 2000

Breeder: Walters Gardens, Inc.

Introducer: Walters Gardens, Inc.

Parentage: Non-induced mutation of 'Langtrees'

Origin: Not Native to North America


  12-15 Inches
  12-15 Inches
Flower Color:
  Blue shades
Foliage Color:
  Silver/grey shades
Hardiness Zone:
Find Your Zone
Sun or Shade?:
  Part shade (4-6 hrs. direct sun)
  Full shade (< 4 hrs. direct sun)
Wet or dry?:
  Average water needs
  Consistent water needs
Need critter resistant plants?:
  Deer resistant
How fast should it grow?:
When should it bloom?:
  Late 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?:
  Rock Garden


Border plants
Cut flower or foliage
Mass Planting
Specimen or focal point


  Royal Horticultural Society's Award of Garden Merit 2004
  Plantarium Gold Medal 2001

Homeowner Growing & Maintenance Tips:

Brunnera is a woodland plant that should be grown in full shade and consistently moist soil in southern regions. In the north, morning sun is acceptable as long as the soil remains moist. They will grow the fastest and strongest in rich soil.

Little care is needed once Brunnera is established. Cut back the old foliage in the spring rather than in the fall; it will help to protect the crown during the winter. A winter mulch is also recommended.


Common/Botanical Name
Dicentra 'Luxuriant'
Common Name: Bleeding Heart-Fern-leaved
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Athyrium niponicum 'Pictum'
Common Name: Fern-Japanese Painted
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Pulmonaria longifolia 'Bertram Anderson'
Common Name: Lungwort
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Polygonatum odoratum 'Variegatum'
Common Name: Solomon's Seal-Variegated
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Astilbe 'Bridal Veil' ('Brautschleier')
Common Name: Astilbe-Hybrid
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Carex morrowii 'Ice Dance'
Common Name: Grass-Ornamental
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Hosta 'Dancing Queen'
Common Name: Hosta
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Tiarella 'Jade Peacock' PPAF CPBRAF
Common Name: Foamflower
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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.