Arabis caucasica
Mountain rock cress (Arabis caucasica) is a ground cover plant that reaches 20 cm × 45 cm after ten years. Light: full sun. Hardy down to -34 °C. Drought tolerance: high. Sold in local shops from about PLN 7.90.
It forms a cushion of grey-green evergreen leaf rosettes that disappears in early spring under lightly scented white flowers, pink in some varieties. It suits sunny rock gardens, the tops of retaining walls and dry banks, in lean, limy, free-draining soil, where it also copes well with drought. Shear it after flowering, otherwise it goes bare in the middle and wears out within a few years.
| Group | Ground cover |
| Light | Full sun |
| Size after 10 years | 20 cm × 45 cm |
| Ultimate size | 15–30 cm × 30–50 cm |
| Hardiness | down to -34 °C (USDA 4, RHS H7) |
| Soil | Average garden soil, Sandy, Calcareous |
| Foliage | Evergreen |
| Flowering | March–May, white, pink |
| Water need | Low |
| Drought tolerance | High |
| Maintenance | Medium |
| Root aggressiveness | Low |
| Suckering | no data |
| Spreading | Low |
| Distance from buildings | no data |
| Distance from paving | no data |
| Litter | not typical |
| Planting distance | 30 cm |
| For dogs | no data |
| For cats | no data |
| For children | no data |
| Typical price | from about PLN 7.90 |
Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor.
The same plant is sold as a small pot and as a specimen several metres tall, and the price follows. Prices are rounded and for guidance only.
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Size
|
Typical price
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|---|---|
| size not stated | approx. PLN 7.90 – PLN 15 |
Data updated: October 17, 2026 · How our data is made
Ground cover plants against weeds: which goes where, and how many you need
A ground cover keeps weeds out once it has closed up: until then, usually for two or three summers, it needs mulch and weeding. Under trees and in shade, lesser periwinkle, bigroot geranium, barrenwort and barren strawberry do best; in sunny, dry places stonecrops, thymes and creeping junipers. Most perennial ground covers take 9-18 plants per square metre. The tables work out what a square metre costs at today's shop prices in your country.
Building a rock garden: stone, soil and plants step by step
A rock garden belongs on a sunny, gentle slope, in lean, free-draining soil: one third garden soil, one third coarse sand, one third crushed stone. Lay the stones, all of one kind, in layers leaning the same way and sunk a third to a half into the ground, so that about two fifths of the surface is stone. Four to six plants per square metre are enough: creeping junipers and grasses make the frame, and between them cushion perennials, stonecrops and thymes flower from March to October.
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