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BeddingHerbaceous Perennial

Salvia patens 'Cambridge Blue'
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gentian sage 'Cambridge Blue'

A tuberous-rooted herbaceous perennial to 75cm in height, with large, oval, pale green leaves and slender spikes of light blue, two-lipped flowers 2.5cm across

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
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

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Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Lamiaceae
Native to GB / Ireland
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

Accepted

How to grow

Cultivation

Best grown in humus-rich, moist but well-drained soil in sun, shelter from cold winds

Propagation

Propagate by seed

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

Cut back spent flower spikes to prolong flowering

Pests

May be susceptible to sage leafhopper, slugs, snails and rosemary beetle

Diseases

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

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