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Herbaceous Perennial

Brunnera macrophylla 'Sea Heart'PBR
  • RHS Plants for pollinators

Siberian bugloss 'Sea Heart'

Has bright green veining through frosted silver heart-shaped leaves, which are creamier when young, delicate sprays of 5-petaled, blue flowers. A mutation of Brunnera 'Silver Lace'. Good for ground cover.

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Blue Green Grey Silver
Autumn
Winter
Position
  • Full shade
  • Full sun
  • Partial shade
Aspect

North–facing or South–facing or East–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Boraginaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Brunnera are rhizomatous herbaceous perennials with large, ovate or heart-shaped basal leaves and sprays of small bright blue flowers in spring

Name status

Accepted

How to grow

Cultivation

Best cultivated in full or dappled shade, woodland conditions which do not dry out, though this cultivar may have a greater tolerance than some other cultivars such as 'Jack Frost' for heat and humidity. In full sun keep soil moist.

Propagation

Propagate from roots in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Ground cover
Pruning

Older leaves can be cut back in spring and during growing season to encourage new growth. Leave the plant to age in autumn to protect the crown. If overcrowded after a few years dig up carefully with a fork, tease out roots and select heathiest clumps for replanting.

Pests

May be susceptible to slugs and snails in damp conditions

Diseases

Generally disease-free

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