Salvia przewalskii

RHS Plant Profile
red sage

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A tuberous-rooted perennial to 60cm tall, with triangular leaves, white-hairy beneath, and branched stems bearing 2-lipped, purple to reddish flowers 3-4cm long, from early summer to early autumn

Position

Full sun

Soil Types

Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

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

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lamiaceae
Native to GB/Ireland
No
Foliage
Deciduous
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
Plant Range
Tibet to C China

How to Grow

Cultivation

Grow in an open sunny situation in well-drained soil; mulch to help tubers overwinter or lift and store as for dahlia cultivation

Propagation

Propagate by seed in containers in a cold frame in spring. Propagate by softwood cuttings in spring or early summer and by semi-ripe cuttings in late summer or autumn with bottom heat

Suggested planting locations and garden types

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

Pruning

Cut back flower spikes after they have faded

Pests

May be susceptible to slugs and snails, capsid bug, rosemary beetle and leafhoppers

Diseases

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