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Salvia × sylvestris 'Mainacht' AGM

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© RHS 1996

Characteristics

Plant type

Herbaceous Perennial

Habit

Clump-forming

Fragrance

Leaf

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Dark Blue in Summer

Foliage

Dark Green in Autumn, Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

wood sage 'Mainacht'

Family

Lamiaceae


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

'Mainacht' is a compact perennial with neat, dark green foliage and dense racemes of deep violet flowers in early summer

Synonym(s)

  • Salvia nemorosa 'May Night'
  • Salvia sylvestris 'May Night'
  • Salvia × superba MAY NIGHT
  • Salvia × sylvestris MAY NIGHT

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing
  • Exposed or Sheltered

Cultivation

Grow in light, moderately fertile, humus-rich, moist but well-drained soil. Best in full sun but can tolerate light partial shade

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Sand, Loam or Chalk

Propagation

Propagate by division in spring

Suggested planting locations and garden types

Flower borders and beds, Mediterranean Climate Plants or Wildlife Gardens


How to care

Pruning

Remove flower spikes as they fade to prolong flowering

Pests

May get slugs, snails and leafhoppers

Diseases

Generally disease free