. Florists' review [microform]. Floriculture. 22 The Florists^ Review NOVBMBBR 10, 1921 The probable value of the right kind of fungi has already been explained; the presence of the wrong kind may be fatal. Hence the necessity of avoiding a sour, unwholesome condition of the compost, which would foster* foreign fungi. A good admixture of charcoal aids in keeping the compost sweet and free from harmful fungi. Among the many points in orchid cul- ture that require exceptional knowledge and skill are these: The proper allow- ances for the period of rest of the deciduous species; the regulation of
. Florists' review [microform]. Floriculture. 22 The Florists^ Review NOVBMBBR 10, 1921 The probable value of the right kind of fungi has already been explained; the presence of the wrong kind may be fatal. Hence the necessity of avoiding a sour, unwholesome condition of the compost, which would foster* foreign fungi. A good admixture of charcoal aids in keeping the compost sweet and free from harmful fungi. Among the many points in orchid cul- ture that require exceptional knowledge and skill are these: The proper allow- ances for the period of rest of the deciduous species; the regulation of the shade all summer and the use of shade in some cases even in winter; the main- tenance of a continuously humid but healthful, tropical or semitropical at- mosphere, with abundance of ventila- tion, but with no direct exposure of the I)lants to drafts. Compost for Terrestriala. The most obvious peculiarity of or- chid culture, however, is the nature of the potting material, or in numerous instances the entire absence of potting material, with blocks of wood as sub- stitutes for pots or baskets. Even ter- restrial orchids, though growing "on the earth" in a manner that has an out- ward resemblance to the behavior of or- dinary plants, usually prefer a much more open and porous potting material than do the generality of plants. A ter- restrial orchid is happy if a third or more of its pot is occupied by drainage and the rest of the space is filled with equal parts of chopped live sphagnum, leaf-mold and chopped sod, minus some of the fine soil. To this mixture may be added a little ground bone, perhaps, for some of the hearty-feeding varieties. Or in some cases the compost may be even lighter or less nutritive and the application of a little liquid manure later will make amends for any de- ficiencies. How Epiphsrtes Are Nourished. Rut the compost used for terrestrial orcliids would seem to be highly nour- ishing compared with the material sup- plied to the roots of t
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
