. The century book of gardening; a comprehensive work for every lover of the garden. Gardening. 162 THE CENTURY BOOK OF GARDENING. a greater difference of levels to appear in the garden, the little alpines being planted on the eminences and the stronger-growing subjects in the lowest positions. Where water is at hand these differences of elevation are particularly valuable, since they admit of a streamlet being brought down by a series of picturesque falls or cascades from the upper to the lower levels. Some rocks of large size should be used and rock masses built, which will provide a nobilit
. The century book of gardening; a comprehensive work for every lover of the garden. Gardening. 162 THE CENTURY BOOK OF GARDENING. a greater difference of levels to appear in the garden, the little alpines being planted on the eminences and the stronger-growing subjects in the lowest positions. Where water is at hand these differences of elevation are particularly valuable, since they admit of a streamlet being brought down by a series of picturesque falls or cascades from the upper to the lower levels. Some rocks of large size should be used and rock masses built, which will provide a nobility of form that must necessarily be absent where stones of a uniform bulk are alone employed. Shelter is valuable where this can be provided without the shade of trees. A screen of shrubs situated at such a distance that their roots will not penetrate the rock garden, and acting as a break to the prevailing winds, is a distinct advantage ; but the rock garden should be open to the fullest sunshine, and shade should be provided for such things as need it by planting them on the sunless side of perpendicular rocks. All large blocks of rock should be placed in position before the soil is added, and the remaining stones introduced as the work proceeds. The soil should be deep, so as to admit of the roots descending or running back between the interstices of the stones, and reaching a depth where the earth remains moist and always of an equable tempera- t u re. If shallow it soon cccomes parched i n h o t w e a t h e r, and all but the most vigorous subjects will be liable to perish; but by providing a deep root - run between and at the bases of the stones, the plants may enjoy those conditions that the majority of them appreciate so highly, namely, a full exposure to the heat of the sun combined with a moist root-run. In the lowest portion of the rock garden a moisture-retaining depression may be formed, where such things as the Lady's Slippers (Cypripedium spectabile, C. acaule, C.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectgardening, bookyear19
