728 



THE BOOK OF GARDENING. 



be done in early spring, when growth is commencing. There are 

 many good hybrids, and the following are a few of the best, the 

 colours ranging from white, pink, and red to scarlet : Alba Plena, 

 Fimbriata, Delicata, C. H. Hovey, Jubilee, and Imbricata. 

 C. reticulata and C. japonica (Fig. 473) are singles, the last 

 being the chief parent of the hybrids and best for stocks. 



Choisya ternata makes a handsome pot-plant, having white 

 flowers. Propagate by cuttings of ripened wood in July, in slight 

 bottom-heat, and grow in the cool pit. Soil : loam, peat, and 

 sand. Flowers (white) in May and June. Height 3ft. to 4ft. in 

 the case of full-grown plants. 



Chorizemas are useful, giving flowers throughout spring and 

 early summer. They have rather a 'straggly growth, and it is 

 necessary to cut back all the strongest shoots after flowering. 

 Propagate by cuttings of side-shoots in May or June in the cool 

 pit. Grow in peat, loam, and sand. Sorts : C. cordatum, 

 C. Henchmanni, C. Lawrencianum, and C. varium: Colours, 

 orange-red and scarlet. Height 2 ft. to 3ft. 



Citrus Aurantium is the well-known Orange. There are 

 many varieties, but all require the same treatment. Propagate 



by cuttings of young 

 shoots at any time 

 after growth is fin- 

 ished, placing in 

 strong bottom- 

 heat. Grafting is 

 also largely prac- 

 tised, and for this 

 purpose seedlings 

 are raised, the seed 

 being sown in spring 

 — January or Feb- 

 ruary is the best 

 time. The grafted 

 plant should be 

 placed in strong 

 bottom-heat. Grow in a 

 rich compost of fibrous 

 loam, leaf-soil, dry cow- 

 manure, and sand,' using 

 all the materials in a 

 coarse state, and adding 

 lumps of charcoal to keep 

 the soil open and sweet. Whilst growing give liquid manure 

 twice a week. Grow cool in winter and warm in spring. The 

 plants may be placed outside in August and September if not' 

 grown for fruit (to obtain this properly they require special treatment, 



Fig. 474.— Citrus Aurantium. 



