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Brunnera macrophylla 'Silver heart'

Common Name(s):

Silver Heart Brunnera

Heartleaf brunnera

Synonym:

​

False-Forget-Me-Not

Flower:

Blue

Blooms :

Apr

to:

May

Tiny star shaped blue flowers with tiny white eyes

Botanical Description

Fragrant?

NO

Family:

Boraginaceae

Herbaceous Plant, Perennial

Foliage:

Gray-Green

Basal leaves heart shaped form a mound which remains attractive through the growing season. Smaller upper leaves are elliptical.

Fall Color?

YES

The foliage maintains its colors intofall

Deciduous

Photo by: 

Heading 6

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Oregon Native?

NO

West State Native?

NO

Origins:

Trace back to the Netherlands where it was discovered as a sport and later patented

Site Selection

Minimum USDA Hardiness Zone:

3

Water Needs:

M

Sun Needs:

Shade

Deer Resistant?

YES

Firewise?

YES

Height:

6-12"

Spread:

12-24"

Growth Rate:

Slow

Native Habitat:

Cultivar so has no native habitat

Soil:

Prefers consistently moist, organically rich soils in shady areas. Generally intolerant of dry soils.

Care Recommendations

Maintenance Level:

Medium

Fertilizer:

Balanced slow-release fertilizer or top dressing with compost in spring

Mulch:

Apply a 2-4" layer of shredded bark, leaf mold or high quality compost

Plant in partial to full shade, keep soil consistently moist, need humus rich well-draining soil, a 1-2" layer of organic mulch, clip spent flowers after bloom, divide every 3-4 years in early spring or fall

Long Term:

Winter:

Let foliage die back naturally, apply winter mulch

Spring:

Cut back previous seasons withered or damaged foliae to the ground, make sure soil is evenly moist, fertilize in early spring, after bloom snip flower stalks to base, can divide

Summer:

Keep soil evenly moist, mulch if not done in spring, remove damaged leaves, make sure in part to full shade

Fall:

Do not prune, add mulch, reduce watering but do not let the soil dry out, can divide

General Care Comments:

Prefers part to full shade, soil must be kept consistently moist, plant in soil rich in organic matter, mulch with organic bark, do not prune in fall

Common Problems

Plants may self seed in optimum growing conditions.

Diseases:

Powdery mildew, root rot, bacterial leaf spot, blight, rust

Insects:

Aphids, spider mites, scale, mealybugs

Environmental Problems:

Foliage may scorch in hot summer sun.

Pests:

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COMGA

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