Scientific Name:
Arabis caucasica
(incl. hybrid cvs.)
Pronunciation:
AR-uh-biss kaw-KASS-ih-kuh
Common Name:
rock cress, pink wall cress
Family Name:
Brassicaceae
Plant Type:
Ground cover, Herbaceous perennial
Key ID Features:
Small, mounding perennial; leaves alternate, obovate-spatulate, 3-9cm long x 1-3cm wide, margins sparsely toothed; flowers with 4 white petals (pink, magenta, red, purple cvs.)
Habit:
Spreading
Form:
Creeping / Mat-like
Texture:
Medium - fine
Mature Height:
0.1 - 0.2m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Moderate
Origin:
Europe (Southern Europe)
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun
Soil/Growing Medium:
Rocky or gravelly or dry, Well-drained
Water Use:
Moderate
Landscape Uses:
Ground cover, Perennial border, Rock garden
Additional Info:
Google. Most images are of A. 'Snow Cap'. Common pink cultivars include A. 'Compinkie' (A. caucasica x A. aubrietioides). Compare to A. blepharophylla.
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Branching hairs
Colour in Summer:
Dark-green
Shapes:
Obovate, Spatulate
Apices:
Rounded
Bases:
Acute, Attenuate
Margins:
Pinnately lobed
Inflorescence Type:
Raceme, Floriferous
Flower Morphology:
Flowers perfect
Number Of Petals:
4
Corolla Shape:
Cruciform
Ovary Position:
Superior
Colour (petals):
Showy, White, Purple, Pink, Magenta, Dark-red
Flower Scent:
Fragrant
Flower Time at Peak:
Apr, May
Fruit Type:
Silique
Fruit Colour:
Brown
Fruiting Time:
Jun
Additional Info:
Not showy
Bark Morphology:
Smooth
Bark or Stem Colour:
Green
Propagation:
Seed, Greenwood cuttings, Division - below ground parts
Maintenance:
Low
Other:
Prune back after flowering
Pest Susceptibility:
Aphids or adelgids, Mildew, Root rot, Rust (Pest resistant, Deer resistant, Rabbit resistant, Drought tolerant)
Course(s):
- CLT Training
- HORT 1155
- Level 3 Apprenticeship
Location(s):
- (BCE) Boulevard (Circular) Eastend
- (BCW) Boulevard (Circular) Westend : on green wall
- (NRY) NuRserY
- (WLG) WoodLand Garden