April 29, 1918 



HORTICULTURE 



ROSE GROWING UNDER GLASS 





CONDUCTED BY 



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Questions by our readers in line with any of tlie topics presented on this page will be cordially received and promptly answered 

 by Mr. Ruzicka. Such commnnlcations sbonid Invariably be addressed to tbe office of HOBTICDLTDRE. 



Keep the Fires Going 



Do not let the fires go out as soon as the first few days 

 of warm weather come around. This may save a little 

 coal but the plant? will suffer in the end, getting a dose 

 of mildew almost without fail. It will do the houses no 

 good to run cold at night, with the damp chilly air 

 creeping in from the outside. With the houses planted 

 late there will still be a good many roses to cut before 

 they are replanted and if these roses can be kept free 

 from mildew and be of good quality otherwise, there will 

 still be quite a little money coming in. The amount 

 of coal consumed will be ver\' little compared to the 

 good it will do the plants. With good boilers which are 

 big enough the fires will not need much attention at 

 night and arrangements to care for them can be made 

 even on a small place having no regular night man in 

 the spring and summer. It is a little more difficult to 

 fire with small coal as the boilers cannot be loaded down 

 with it but where larger coal is burned it is vei-y simple 

 to load up to last for four or five hours. If there is no 

 steam in the houses shut oS some of the hot-water pipes, 

 thus directing the circulation into one or two coils, giv- 

 ing these circulation which would be impossible to se- 

 cure with a low fire and the whole system turned on. 

 In turning off some of the pipes on the hot-water sys- 

 tem some thought should be given to the effect that the 

 remaining pipes will have on tbe distribution of heat. 

 Conditions vary, and in some localities the wind will 

 hit the houses in such a way as to make it necessary to 

 use the coils in the center of the house instead of the 

 coils around the wall as is customary. 



Pot-Bound Plants 



Even with careful planning there may be a batch of 

 plants that will come a little ahead of time, and as they 

 are in the largest pot it is not possible to shift them 

 again until after they are planted, or it may be that 

 room has to be made before a certain lot of plants can 

 be shifted into larger pots. In either case the plants 

 will likely become pot-bound and will receive a severe 

 check both in growth and in root as well. To prevent 

 this a light dressing of bonemeal every week will keep 

 them moving until a time when they can be either plant- 



ed or repotted. Of course it is much better for the plants 

 to be potted or planted on time and the method men- 

 tioned above should be used only in emergenices and 

 should not be practiced except when circumstances pre- 

 vent work being done on time. In applying the bone- 

 meal make sure that it is put on evenly so that all the 

 plants will receive about the same amount. This will 

 insure even gro^'th, and prevent some plants from get- 

 ting stunted while others are making too much growth. 

 Liquid manure had better not be used on pot-bound 

 plants, as it will lilcely produce a lot of very rapid and 

 weak soft growth which will be easy prey to mildew. 

 Water the plants before the bone is applied and do not 

 apply it until the foliage is thoroughly dry, so that there 

 will be no bonemeal sticking to the leaves. Water the 

 plants directly after it is applied, so a.s to get it into 

 the soil and to remove what little dust there may be 

 sticking to the leaves here and there. 



Care of Outdoor Roses 

 Many growers have quite a number of plants growing 

 outside mostly for cut flowers in the summer, to go out 

 on small orders when greenhouse roses are scarce. There 

 is no better time than now to go through these and pull 

 out all the perennial weeds that may have established 

 tliemselves among the plants last summer. These can be 

 easily pulled up now while the ground is still moist,^ 

 something which will be almost impossible after the 

 ground dries out a bit. If the plants have not been 

 pruned as yet it is time to do it before many of the buds 

 start. The mulch they received last winter can be left 

 right among them, thus doing away with a good deal of 

 hoeing and also keeping the soil cool for the roots to- 

 work in. To save space it will lie best to have these 

 roses planted about as they are in the gi-eenhouse 

 benches, with paths between every four or five rows. 

 The walks should be higher than the beds instead of 

 lower unless the roses are planted in very wet ground. 

 The higher paths will be welcome if the plants have to 

 be watered with a hose as the water will quickly drain 

 to the plants leaving the paths diT. A line of irriga- 

 tion nosizles put up over the rose beds will pay for it- 

 self the first season, not only in the time saved but also 

 because it will insure water when the plants need it. 



VISITORS' REGISTER. 



Xew 



Pittsburgh — Julius Dilloff, 

 Yorls. 



Philadelphia — H. E. Hildebrand. Har- 

 risburg, Pa. 



Cincinnati — Geo. Frisch, Jr., and M. 

 Anderson, Dayton, Ohio. 



New York — W. J. Stewart and Mrs. 

 Stewart, Boston; J. D. Twombly. Win- 

 chester. Mass.; A. A. Leach, Pitts- 

 burgh, Pa. 



Boston — Walter Gott, representing 

 Sander & Sons, St. Albans, England; 

 Maurice L. Glass, of Henry M. Robin- 

 son Co., New York: Prof. A. H. Nehr- 

 ling, Amherst, Mass. 



Chicago — Mrs. A. C. Roth, Joliet. 

 111.; John S. Carter, St. Louis, Mo.; E. 

 A. Fetters. Cleveland, Ohio; Robt. 

 Rahaley, Detroit, Mich.; Mathias Ul- 

 lenbruch. Port Huron, Mich. 



Washington. D. C. — Hugo F. Houft- 

 man. Juliana Nurseries, Boskoop, Hol- 

 land; T. A. Warne, Floral Nurseries, 

 Bristol, Pa.; L. B. Brague, Hinsdale, 

 Mass.; representative of the Lakiu 

 Floral Co., Syracuse, N. Y. 



By moving and replacing many of 

 the trees on the campus, the land- 

 scape gardeners at the University of 

 Wisconsin plan to make a number of 

 changes this spring tliat will enhance 



the beauty of the university grounds. 

 Many of the trees are crowded and 

 the plan is to take these away and 

 plant others where they can grow as 

 they should. Linden Drive, which 

 leads to the College of Agriculture, will 

 be widened ' from twenty to forty- 

 eight feet. Many red and white pines 

 and evergreens will be secured from 

 the state conservation department and 

 planted in various places on the 

 campus. A pine plantation will be es- 

 tablished on Eagle Heights, about 

 three miles from the main campus. 

 Trees in other positions will be moved 

 and many will be transplanted to the 

 lake riiore to shield the power house 



