Rock Garden Planting
Rock garden planting gives an opportunity for creating real pictures. It is not enough to know how to grow each of the rock plants. The rock gardener must also know how to make use of the various types of plants for picturesque effects.
In considering this it is as well to keep in mind the various types which are available, each of which serves a distinct purpose. There are, for instance, the carpet plants such as Arabis and Aubrietia for covering sunny pockets, and Arenaria and Helxine for smothering pockets and rocks on the shady slopes.
There are some plants with rosettes, spread out like little green carpets beneath the dancing fairy flowers. To this group belong the Ramondias,, and a number of the Saxifrages. Then there are plants with sword-like or grassy leaves that rise vertically from the pockets, thus giving added line and form to the when used as a break between the smoother growth of creeping carpets. In this group are the Alpine Irises and Sisyrinchium, the hoop-petticoat Daffodil and the autumn-flowering Caffre Lily.
Then there are dwarf pyramid shrubs, which give the effect of real mountain scenery if they are planted half-way up the slopes of the rock garden.obtusa is one.
There are also dwarf spreading conifers such as Juniperus communis nana, and berry-bearing shrubs such as the low spreadinghorizontalis.
Colour in the rock garden is also important, particularly at seasons when most rock flowers are at rest, and such colour can best be introduced by using gold-leaved shrubs likeadpressa aurea. Grey-leaved shrubs such as the alpine Artemisia, dwarf and Santolina are also good for creating contrasts in the rock garden.