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Herbs - CulinaryShrubs

Salvia rosmarinus 'Sudbury Blue' (Ro)
  • RHS Plants for pollinators

rosemary 'Sudbury Blue'

A bushy, upright and spreading evergreen shrub about 1m tall, with aromatic dark green needle-shaped linear leaves, with speckled blue flowers, produced from mid-spring to early summer

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

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Lamiaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Skin allergen. Wear gloves and other protective equipment when handling
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 poor to moderately fertile, well-drained soil in sun, see rosmary cultivation for further advice

Propagation

Propagate by semi-ripe cuttings in summer

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Mediterranean climate plants
  • Coastal
  • Gravel garden
  • Patio and container plants
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds
  • Hedging and screens
Pruning

Pruning group 9; trim hedges after flowering

Pests

May be susceptible to rosemary beetle, cuckoo spit, sage leafhopper, tortrix moth and scale insects

Diseases

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

Get involved

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