Arabis caucasica 'Lotti White'

RHS Plant Profile
mountain rock cress 'Lotti White'

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Synonyms

Arabis alpina subsp. caucasica 'Lotti White'

Plants for pollinators
Alpine Rockery Herbaceous Perennial
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A hardy, mat-forming, short-lived evergreen perennial often grown as an annual, to around 15cm in height, with rosettes of bright green leaves. Clusters of small, fragrant white flowers appear from April to May. An ideal choice for ground cover or for edging borders

Position

Full sun

Soil Types

Chalk, Clay, 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 Clay Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
East–facing or 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)
H6

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Brassicaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Genus
Arabis can be annuals or evergreen perennials, usually mat-forming, with simple leaves and racemes of 4-petalled white, pink or purple flowers.
Name Status
Unresolved

How to Grow

Cultivation

Grow in well-drained soil in full sun; will tolerate hot, dry conditions and poor, infertile soils, and is good for ground cover. See aubrieta arabis and aurinia trial 2024-2026

Propagation

Propagate by softwood cuttings in summer, or by division

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Rock garden
  • Wildlife gardens
  • Banks and slopes
  • Flower borders and beds
  • Garden edging
  • Ground cover

Pruning

Trim back after flowering

Pests

May be susceptible to arabis midge and flea beetles

Diseases

May be susceptible to downy mildews, white blister, and virus diseases