It is necessary for a rock garden as well rubble. It is used for a drainage, for creation of a rocky talus, to it also obkladyvajut root necks of some plants to protect them from rotting.
Sand for a rock garden is necessary river, without oozy impurity. It add in soil for friability, and also bring under such plants as krupka (Draba) which grow on sandy soil.
The soil for a rock garden is used cespitose with a humus small amount. For each plant to the basic soil add certain additives. For example, rhododendrons and eriki demand a considerable quantity of peat and a laying from a pine pine forest, Venus shoes – compost from beechen leaves, a gentian – the crushed peat. The Alpine plants are exacting to soil structure, but here fertilizers practically are not necessary to them. Only bulbous sometimes demand top dressing by dry cow manure.
Rock garden - Building
Rock garden building begins with breakdown and a site lay-out. Then it clear away, remove turf, carefully weed.
After clearing fill a drainage layer from building garbage, slag, gravel. It allows to avoid stagnation of water as the majority of mountain plants do not take out rehumidifying. Than more hard soil on your site, the drainage layer should be especially thick.
Then fill cespitose soil. If you want to make all by rules you should take care of its preparation in good time. For this purpose turf cut off small pieces and stack in burty downwards a grass. Burty water within summer, that a grass pereprela. In a year the earth mix and use in rock gardens. The main thing that the soil not-la too fertile therefore rerotting manure to add in it categorically is not necessary. Your future pupils have got used to grow in severe conditions of high mountains if it to give a superfluous food, they will grow weak and coddled.
If you plan to construct the big rock garden it is necessary to plan at once where in it footpaths will settle down, steps, transitions, etc. If you want to simulate natural landscapes it is necessary to spend at once a marking of "valleys", "plateau", "breakages", «rocky taluses». After a lay-out establish the big stones.
If stones settle down on a slope over the earth their third part should act only. Your future "rocks" should be stacked from bottom, and then gradually to pass to beliefs-tyres of "mountain". It is necessary to remember that the mountain landscape is deprived symmetry, its charm in the disorder which in this case has been carefully thought over. It is necessary to remember that the rock garden should to look aesthetically and without plants.
Certainly, after installation of stones and a site lay-out each fan would like immediately to start to put plants. And it is vain.
The soil in rock gardens should settle, on it it is required not less year. It also is necessary for bole careful destruction of all weeds which seeds can get on a site with soil. After deposits empty places fill up, and then, at last, start landing of plants.

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