Salvia rosmarinus 'Severn Sea' (Ro)
rosemary 'Severn Sea'
Spreading evergreen shrub about 1m in height, with arching branches bearing aromatic, linear, dark green leaves, and bright blue, two-lipped flowers in axillary clusters in spring and summer, sometimes again in autumn
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Size
Ultimate height
0.5–1 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 | Blue | Green | ||
|---|---|---|---|---|
| Summer | Blue | Green | ||
| Autumn | Blue | Green | ||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Lamiaceae
- Native to the UK
- 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
Easy to grow aromatic, evergreen shrub. Prefers poor, well-drained soil and may be used as a formal or informal low hedge which should be trimmed after flowering. See rosemary cultivation for further advice
Propagation
Propagate by semi-hardwood cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Gravel garden
- Mediterranean climate plants
- Patio and container plants
- Wildlife gardens
- Flower borders and beds
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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