ON GREENHOUSE PLANTS. 



735 



(2) The Malayan Section require to be grown warm, say in a 

 winter temperature of from 5odeg. to 6odeg., and in a moist atmo- 

 sphere ; they make small shrubs, and are very suitable for loin. 

 pots. Propagate the same as the Himalayan species, and grow 

 in peat and sand. They may be had in flower from early winter 

 till late summer. After flowering continue to grow on in warmth, 

 gradually hardening and ripening off. When growth is completed 

 do not prune, but tie in the 

 shoots to obtain a good 

 shape. Sorts : R. balsamince- 

 ^oru77i, R. jasniinifiorimt^ 

 R. javanicmn, and R. multi- 

 color^ and of these there are 

 many hybrids. These seldom 

 attain a height of more than 

 2ft. The flowers are fleshy, 

 having a waxy ap- 

 pearance, with long 

 tubes, and are pro- 

 duced in lax open 

 trusses. 



Roses. — Although 

 really hardy plants, 

 no greenhouse would 

 be complete without 

 Tea Roses. These 

 should be grafted on 

 seedling Briar stocks 

 in January, in heat. 

 Continue to grow 

 warm for a short time till after union has taken place, and later 

 remove to the cool house, shift into 6in. pots, and later into Sin. 

 or loin. pots. Grow outside during the summer, and place in the 

 cool pit in autumn. If it is desired to obtain them in blossom 

 early, they must be placed in the warm pit and gently forced. 

 If they are desired for summer blossom, continue to grow in the 

 cool pit. Use a rich compost of yellow loam, dry cow-dung, 

 leaf-soil, and sand. Prune carefully, but not hard, before growth 

 commences. The best sorts for pots are : Catherine Mermet, 

 Marie Van Houtte, Madame Lambard, Niphetos, ' Sappho, 

 Souvenir de S. A. Prince, The Bride, and Waban. 



Tecoma Smithii and 2\ capensis are very handsome and free- 

 flowering pot-plants for summer use. Propagate by cuttings ot 

 young, partially-ripened shoots in summer, in slight heat, and 

 grow in a cool pit or frame in loam, leaf-soil, and sand. Ripen 

 off outside after flowering, and keep cool in winter. These 

 plants have long tubular flowers, borne at the ends of ripened 

 shoots. T. capensis is bright orange, and T. Smithii^ which is 



Fig. 482. — Rhododendron arboreum. 



