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Herbaceous Perennial

Salvia × sylvestris Sky Blue Marvel ('Balsalskarv'PBR)
  • RHS Plants for pollinators

A compact, bushy perennial with aromatic mid-green foliage. Erect flower stems of sky-blue flowers appear from summer through to the autumn

Synonyms
Salvia × sylvestris 'Balsalskarv'PBR
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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
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or East–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H7
Botanical details
Family
Lamiaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Salvia can be annuals, biennials, herbaceous or evergreen perennials, or shrubs. They have paired, simple or pinnately lobed, often aromatic leaves and 2-lipped flowers in whorls, forming simple or branched spikes or racemes

Name status

Trade

How to grow

Cultivation

Grow in light, moderately fertile, humus-rich, moist but well-drained soil. Mulch in spring. Best in full sun but can tolerate light partial shade. Drought-tolerant once established

Propagation

Propagate by division in spring and by semi-ripe cuttings in summer

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Mediterranean climate plants
  • Wildlife gardens
  • Cut flowers
  • Flower borders and beds
Pruning

Deadhead flower spikes as they fade to prolong flowering

Pests

May be susceptible to slugs, snails and leafhoppers

Diseases

May be susceptible to honey fungus (rarely), powdery mildews, verticillium wilt and foot and root rots

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