Hypericum kalmianum First Editions© 'Cobalt-n-Gold'

£47.99
In stock
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Elevate your garden borders with Hypericum kalmianum Cobalt-n-Gold, a multi-award-winning shrub from the First Editions collection. This hardy deciduous variety is a year-round showstopper, featuring silver-blue, willow-like foliage that perfectly offsets a blanket of brilliant golden-yellow summer blooms. As autumn arrives, the leaves transform into a rich tapestry of red and orange, accompanied by decorative glossy berries. Even in winter, the plant remains architectural, revealing attractive exfoliating orange-red bark. Compact and naturally rounded, it reaches approximately 60–90cm, making it an ideal, low-maintenance choice for sunny, free-draining borders or rock gardens. Drought-tolerant and highly resistant to pests once established.

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Key Features

Plants by type
  • Shrubs
Flower Colour
  • Yellow
Eventual Height
  • 0.1-0.5m
Flowering Month
  • July
  • August
  • September
Planting Position
  • Full sun
  • Part shade
Features
  • Deciduous
  • Summer flowering
  • Loved by pollinators

How to care for Hypericum kalmianum First Editions© 'Cobalt-n-Gold'

Light:
Performs best in full sun but will also grow in light partial shade.

Soil:
Prefers well-drained soil and grows particularly well in sandy or lighter soils.

Water:
Water regularly while plants establish. Once mature, it tolerates dry conditions well.

Pruning:
Minimal pruning required. Trim lightly in early spring to maintain a compact shape.

Hardiness:
Very hardy and suitable for UK gardens.

Feeding:
Usually unnecessary; a light mulch of compost in spring is beneficial on poorer soils.

Notes

Deciduous ornamental shrub

Narrow blue-green foliage with a silvery tone

Bright golden-yellow flowers through summer

Decorative berries following the flowers

Foliage often develops warm red and orange tones in autumn

Attractive orange-red bark visible in winter

Naturally compact, rounded growth habit

Suitable for sunny borders, gravel gardens, and rockeries

Drought tolerant once established

Mature size approx. 60–90 cm tall and wide

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