Scree gardening
Taking inspiration from the alpine landscape, the perfect scree garden offer plants adequate moisture in summer along with good drainage and protection from damp in winter. These are the ideal conditions to display choice plants.
Quick facts
- Saxifraga
- Dianthus alpinus AGM
- Lewisia cotyledon AGM
- Daphne cneorum ‘Eximia’ AGM
- Geum montanum AGM
Introduction
Practical considerations
To make your scree garden, choose a sunny site that is well lit even in winter, and away from trees and their leaf fall. Then;
- Clear all perennial weeds
- Dig out about 75cm (30in) of soil from the site, making the base slope gently towards the bottom. Enough slope is needed to allow excess moisture to drain away, without the upper part becoming over-dry in summer
- Cover the base of the area with about 15cm (6in) of rubble
- Place another 15cm (6in) layer of small stones about 2.5cm (1in) diameter on top of the rubble
- Fill up the hollow with a mixture of stone chips and gravel
- Lay a layer of about 7.5cm (3in) depth of free draining soil mix of one part loam or good top soil, 1 part leaf mould, or peat substitute and 2 parts grit by volume
- Top off with a 5cm (2in) layer of gravel. Limestone chips are used for alpines from chalk or limestone areas and shingle, washed gravel or granite chippings for those from neutral or acid soils. Avoid flint chips as they do not conserve moisture
- Try to add some larger stones to add character to the site, and create some protection for plants. Just a few will do, but they are useful as stepping-stones when weeding, as well as for aesthetic reasons. Large stones should match chippings
Care of scree plants
Plants with leaves covered with fluff or down need winter protection from drying winds and damp. In their native habitat snow protects them. From October to March, suspend a sheet of acrylic or polycarbonate over the plants using corner supports.
Water well in dry spells during the growing season. In well-constructed screes plants are deep-rooting, as in natural screes, but may need extra water.
Lightly top-dress in May with the compost mixture used in the original construction, with added fertiliser. This will wash down deep into the scree bed, providing nutrition for searching roots.
Suitable plants
Cushion plants and those that are mat-forming are ideal for scree gardens. Try to avoid rampant growers, tall plants or those with large foliage.
Spring-flowering (April-June) up to 15cm (6in) in height
Androsace sarmentosa
Aubrieta
Draba aizoides
Gentiana verna, Gentiana verna 'Alba'
Geum montanum AGM (through to October)
Lychnis alpina
Petrocallis pyrenaica
Saxifraga (Kabschia Group) e.g. S. burseriana, S. 'Gregor Mendel' AGM
Soldanella alpina, S. montana
Spring-flowering up to 30cm (1ft) in height
Alyssum montanum
Aurinia saxatilis 'Citrina'
Saxifraga oppositifolia, S. oppositifolia subsp. latina, S. retusa
Summer-flowering (June-October) up to 15cm (6in) in height
Acantholimon venustum
Androsace lanuginosa AGM
Anthyllis montana ‘Rubra’ AGM
Aquilegia saximontana
Armeria juniperifolia AGM
Asperula gussonei
Aster alpinus AGM
Campanula pulla, C. raineri AGM
Cyananthus lobatus AGM, C. microphyllus AGM
Dianthus alpinus AGM, D. freynii, D. pavonius
Dryas octopetala ‘Minor’ AGM
Edraianthus pumilio AGM, E. serpyllifolius
Erinus alpinus AGM
Erodium
Gentiana saxosa
Geranium (Cinereum Group) 'Ballerina' AGM, G. subcaulescens ‘Guiseppi’ AGM
Hypericum coris
Lewisia cotyledon AGM, L. oppositifolia, L. rediviva
Linaria alpina
Oxalis enneaphylla AGM
Petrorhagia saxifraga
Potentilla nitida, P. nitida ‘Rubra’
Silene acaulis
Vitaliana primuliflora
Summer-flowering up to 30cm (1ft) in height
Aethionema grandiflorum AGM
Geranium sanguineum, G. sanguineum ‘Album’ AGM
Papaver alpinum, P. triniifolium
Plants suitable for partial shade
Androsace laevigata
Aquilegia saximontana
Campanula
Cyananthus lobatus AGM, C. microphyllus AGM
Gentiana
Linaria
Mertensia
Omphalodes
Primula auricula
Ramonda
Saxifraga
Dwarf shrubs and conifers
Shrubs
Betula nana
Daphne blagayana
Daphne cneorum ‘Eximia’ AGM
Conifers
Abies balsamea Hudsonia Group
Cedrus deodara ‘Pygmy’
Chamaecyparis obtusa ‘Nana’ AGM
Cryptomeria japonica ‘Nana’
Cryptomeria japonica ‘Vilmoriniana’ AGM
Pinus mugo ‘Mops’ AGM
See also...
Alpine Garden Society
Beth Chatto scree garden
RHS bookshop: alpine and crevice gardening
Get involved
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