Rosmarinus officinalis Prostratus Group | rosemary Prostrata Group

RHS 2002

Other common names

rosemary Prostratus Group

Synonyms

Rosmarinus officinalis Prostratus Group, Rosmarinus officinalis 'Corsica Prostratus', Rosmarinus officinalis 'Venzano Prostrate', Rosmarinus corsicus 'Prostratus', Salvia × lavandulacea misapplied, Rosmarinus officinalis lavandulaceus, Rosmarinus officinalis repens, Rosmarinus officinalis creeping, Rosmarinus × lavandulaceus misapplied, Rosmarinus repens, Rosmarinus officinalis var. prostratus

Herbs - Culinary Shrubs

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A group of compact, evergreen shrubs with a prostrate habit linear, dark green highly aromatic foliage. Clusters of blue flowers appear in the spring and summer and occasionally in autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1-1.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H4
Drought Resistance: Yes

Colour & Scent

Fragrance Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Lamiaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Matforming
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
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea: This genus has changed from Rosmarinus to Salvia

How to Grow

Cultivation

Easy to grow aromatic, prostrate evergreen shrub. Prefers poor well-drained soil and may be used as ground cover. See rosemary cultivation for further advice

Propagation

Propagate by semi-hardwood cuttings in summer

Suggested planting locations and garden types

Coastal
Cottage and informal garden
Patio and container plants
Mediterranean climate plants
Low Maintenance
Wall side borders
Flower borders and beds

Pruning

Pruning group 9 but no regular pruning required

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