. Florists' review [microform]. Floriculture. POINTERS ON ORCHIDS. Does it make any difference whether orchid houses are heated by steam or by hot water? I refer in particular to cattleya houses. What is the advantage of growing the plants close to the glass? "Will they not do as well in a high house aa in ft low onof B. W. A.—Ky. Orchid houses may be heated by either steam or hot water. I prefer hot water, as it is a softer heat and does not create so arid an atmosphere. Some large growers, however, use steam suc- cessfully. Cattleyas prefer a roomy house where they can have plenty of ai
. Florists' review [microform]. Floriculture. POINTERS ON ORCHIDS. Does it make any difference whether orchid houses are heated by steam or by hot water? I refer in particular to cattleya houses. What is the advantage of growing the plants close to the glass? "Will they not do as well in a high house aa in ft low onof B. W. A.—Ky. Orchid houses may be heated by either steam or hot water. I prefer hot water, as it is a softer heat and does not create so arid an atmosphere. Some large growers, however, use steam suc- cessfully. Cattleyas prefer a roomy house where they can have plenty of air. Cypripediums and other varieties do better in smaller houses where they can be kept more close and humid. Cat- tleyas, and in fact all orchids, to suc- ceed well must be staged or hung as near the glass as i)Ossible. They will grow well if placed a long distance from the glass, but they will never flower satisfactorily. C. W. BUND SHEATHS ON CATTLEYAS. I am sending you a bulb of Cattleya Triansp. I have but recently taken charge of my present place and I find that many of the plants of C. Trianso were aflfected in the same way last year. The sheaths turned yellow and "never flowered. Some turned yellow before the flowers showed in the sheaths and some after the flowers were seen. Not all the flowers on a plant were so affected; some were all right. A few of the cattleya flowers dried up at the top of the sepal and at the edge of the petal also. The plants were not dry at the time. F. F.—Cal. There are one or two probable causes for blind sheaths on Cattleya Triansp. The principal cause is too heavy shad- ing on the plants. This keeps the plants of a fine, dark green color, such as your bulb has, but the growth is soft' and a large part of the bulbs will throw blind sheaths, as yours have done. Too much water at the root when the growth is being completed will also help to cause this trouble. You will find that in a number of cases, even when the flower sheath dies i
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
