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Salvia leucantha

RHS Plant Profile
Mexican bush sage

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Mexican bush sage RHS 1993
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An evergreen subshrub to 1.2m in height, with narrowly lance-shaped leaves white beneath, and small white flowers with conspicuous downy purple clayces

Position

Full sun, Partial shade

Soil Types

Loam

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
1-1.5 metres

Growing Conditions

Loam
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or East–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)
H2

Colour & Scent

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
Plant Range
Mexico & Tropical America

How to Grow

Cultivation

Grow under glass in peat-free potting compost in full light with shade from hot sun. Grow outdoors in moderately fertile, moist but well-drained soil in full sun or dappled shade in a frost-free border. Protect from excessive winter wet. Many species attract bees. Provide good colour. See our video for more advice

Propagation

Propagate by softwood cuttings in spring or semi-hardwood in late summer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Mediterranean climate plants
  • City and courtyard gardens
  • Coastal
  • Flower borders and beds
  • Conservatory and greenhouse

Pruning

Pruning group 9 in spring

Pests

Generally pest-free

Diseases

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