Arabis alpina subsp. caucasica 'Lotti White'

RHS Plant Profile

mountain rock cress 'Lotti White'

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 See Aubrieta, Arabis and Aurinia trial 2024-2026 for further information: https://www.rhs.org.uk/plants/trials-awards/ongoing-plant-trials/aubretia-arabis-aurinia

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

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