Arabis caucasica

From Permawiki
Jump to navigation Jump to search
Arabis caucasica
Light:Full Sun Part Shade
Moisture:Xeric Mesic
Hardiness:4
Soil pH:5.6-8.4
Evergreen
Height:0.5'
Width:3'
Speed:Moderate
Blooms:Mid Winter-Late Spring
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility Rating
Tea:Yes
Poisonous

Arabis caucasica (common name: rock cress)

Propagation: Seed - it is best to surface sow the seed as soon as it is ripe in a light position in a cold frame[1]. Seed can also be sown in spring. It usually germinates in 2 - 3 weeks at 21°c[1]. When large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.

Division after flowering[2]. Very easy, the divisions can be planted out straight into their permanent positions if required.

Cuttings in a shady border in summer[3].

Cultivation: Easily grown in ordinary well-drained soil[3]. Prefers a poor soil[4]. Succeeds in partial shade[1] though it tends to become straggly[5]. Established plants are very tolerant of drought and grow very well on a dry bank[6], they also succeed when grown in walls[7][K].

A very ornamental plant[3], it is hardy to about -15°c[4], but can be rather invasive[8]. There are some named varieties selected for their ornamental value[4].

A good butterfly and moth plant[9]. Bees are attracted to the flowers.

Plants resent root disturbance and are best put in their final positions whilst still small[1].

This species is closely related to A. alpina[8].

Range: S.E. Europe - Mediterranean. Occasionally naturalized in Britain[10].

Habitat: Mountain rocks and dry sites[11].

Edibility: The leaves are used as a garnish in much the same way as watercress[12]. They are also sometimes used as a potherb[12].

Usage: A good ground cover plant for sunny positions[13][5], forming a carpet[14].

Pollinators: Bees, lepidoptera

Soil: Can grow in light, medium, and heavy soils.

Drainage: Prefers well drained soil.

In Leaf: Evergreen

Seed Ripens: Mid Spring-Early Summer

Flower Type: Hermaphrodite

Also Known As: A. albida.

Links

References

  1. 1.0 1.1 1.2 1.3 Rice, Graham. Growing from Seed Volume 2. Thompson and Morgan, 1988.
  2. Sanders, Thomas. Popular Hardy Perennials. Collingridge, 1926.
  3. 3.0 3.1 3.2 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. 4.0 4.1 4.2 Phillips, Roger and Martyn Rix. Perennials - The Definitve Reference. Pan Books, 1991.
  5. 5.0 5.1 Napier, Elspeth. Ground Cover Plants. Cassells, 1989.
  6. Chatto, Beth. The Damp Garden. Dent, 1982.
  7. Grey-Wilson, Christopher and Victoria Matthews. Gardening on Walls. Collins, 1983.
  8. 8.0 8.1 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  9. Carter, David. Butterflies and Moths in Britain and Europe. Pan, 1982.
  10. Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
  11. Polunin, Oleg. Flowers of Greece and the Balkans. Oxford University Press, 1980.
  12. 12.0 12.1 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
  13. Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
  14. Thomas, Graham. Plants for Ground Cover. Everyman, 1990.