Salvia rosmarinus 'Blue Rain' (Ro)
A low, spreading evergreen shrub, to around 30cm high, with highly aromatic, linear dark green leaves with pale, felted undersides. Small, pale blue flowers are produced in the leaf axils, over a relatively long period in late spring and early summer
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Purple | Green | ||
|---|---|---|---|---|
| Summer | Purple | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Lamiaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Trailing
- 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
Unresolved
How to grow
Cultivation
Thrives in a sunny spot, in light, well-drained soil that is not too acidic. Protect from excess winter wet, and from hard frosts in colder locations. See rosemary cultivation for more advice
Propagation
Propagate by heel cuttings in spring or by semi-ripe cuttings in late summer
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Gravel garden
- hanging basket
- Mediterranean climate plants
- Patio and container plants
- Wildlife gardens
- Banks and slopes
- Ground cover
Pruning
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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