Salvia jordanii (Ro)

RHS Plant Profile
Jordan's rosemary

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Other common names

Algerian rosemary

Synonyms

Rosmarinus eriocalyx var. pallescens
Rosmarinus eriocalyx

Plants for pollinators
Shrubs

An aromatic evergreen shrub native of Spain and North Africa. Has a dense habit with deep-green linear leaves and two-lipped flowers, deep violet-pink on the upper lip and lavender-blue on the lower lip in spring and summer.

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Neutral or Alkaline

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or 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
Bushy
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
Correct
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
Plant Range
NE Morocco

How to Grow

Cultivation

Easy to grow, it prefers not too fertile, well-drained soil in a full sun position. Can be trimmed after flowering to keep the shape if used as an informal hedge.

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Gravel garden
  • Wildlife gardens
  • Flower borders and beds

Pruning

Pruning group 9 in spring; cut back spent flower spikes to prolong flowering

Pests

Generally pest-free

Diseases

High Risk Host for Xylella fastidiosa. May be susceptible to honey fungus (rarely), powdery mildews, verticillium wilt and foot and root rots