r>6 GLENNYS HANDBOOK 



is essential during the winter months can be more readily 

 given them. The amount of protection they receive in winter 

 must depend on the locaHt}' and the severity of the season : 

 they will not hear much frost without injury. They require 

 a dry and well-drained, sandy, loamy soil, and such a situation 

 as is afforded by a piece of exposed rockwork: in such situ- 

 ations, too, on account of their slower growth, they experience 

 a minimum of injury from cold. Two-year-old plants are 

 the handsomest, unless the older ones escape uninjured by 

 frosts. 



CITRUS. Orange. [Aurantiaceae.] Well-known and 

 favourite greenhouse evergreen shmbs or small trees, culti- 

 vated for the sake of their highly fragrant flowers, their richly- 

 coloured fruit, and the generally interesting appearance of 

 their habit of growth. These trees all require essentially 

 the same treatment. Pot or tub them in a compost of mellow 

 loam from rotted turves, mixed with half its quantity of 

 decomposed cowdung, and a sixth part of coarse gritty sand. 

 Place them in the open air from the latter part of July till 

 the beginning of September, giving them plenty of water and 

 an occasional syringe over the foliage with a garden engine 

 and fine rose. House them early in September, and take 

 care they do not have too much water during winter. April 

 is the best month to shift their tubs or pots. Large plants 

 in tubs require an annual dressing ; part of the surface soil 

 should be taken off, and replaced with fresh compost, and in 

 the spring a little liquid manure made from sheep's dung is 

 beneficial. Cuttings strike freely, but it is better to raise 

 stocks from seed, and graft the fine varieties upon them. 

 The grafting may be done in any fashion, so that the cut part 

 of the stock and the cut part of the scion fit closely, and the 

 barks meet on one side. They may be grafted by inarching, 

 as Camellias are done, or cleft-grafted like the Rose, or spliced 

 like a broken stick. When done by inarching, a strong neat 

 branching bit of the tree may be taken, and with fruit already 

 on it ; so that a tree is formed as soon as the stock and the 

 head are united. When they are inarched it is chiefly done 

 for the sake of making very dwarf plants, and having them 

 very soon ready for sale or use, the stock being worked as 

 close down to the surface as possible. The Otaheite Orange 



