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Herbaceous Perennial

Salvia guaranitica 'Blue Enigma'
  • RHS AGM
  • RHS Plants for pollinators

anise-scented sage 'Blue Enigma'

A tall perennial with ovate leaves and terminal and axillary spikes of deep blue, two-lipped flowers 5cm in length, in late summer and autumn

Synonyms
Salvia ambigens

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Green
Autumn Blue Green
Winter
Position
  • Full sun
Aspect

South–facing or East–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Lamiaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
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

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

Propagation

Propagate by basal cuttings or softwood cuttings in spring or early summer or semi-hardwood cuttings in late summer or autumn with bottom heat

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
  • Bedding
  • Conservatory and greenhouse
Pruning

Cut back spent 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

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