Salvia × digenea 'Adora Blue'

RHS Plant Profile
hybrid sage 'Adora Blue'

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Synonyms

Salvia × superba 'Adora Blue'

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Herbaceous Perennial
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A compact perennial with fragrant mid-green, lance shaped foliage and slender racemes of small violet-blue lipped flowers in summer and autumn.

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H7

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
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
Accepted

How to Grow

Cultivation

Will grow well in soils that are moderately fertile and moist but well-drained preferably in full sun but will tolerate some shade. Once the plant is established it will require less watering.

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
  • Mediterranean climate plants
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds

Pruning

Cut back flower spikes to prolong flowering

Pests

Generally pest-free

Diseases

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