By Mr. James Traill. 



29 



was brought by Mr. Potts, from China, in 1822, and is now 

 in the possession of the Horticultural Society; it may be 

 called Hoya angustifolia. 



In the cultivation of Hoyas, the most important considera- 

 tion is the choice of a soil suitable to their nature and habits. 

 The best that I have yet tried for this purpose, and in which 

 I have found them to grow particularly well, is a mixture of 

 fresh vegetable mould, and lime rubbish, in nearly equal 

 quantities. It is not necessary that the compost should be 

 sifted. If it be only broken fine with the spade, and the 

 larger lumps and stones taken out, the plants will be found 

 to root more freely in it, and consequently grow better than 

 they generally do, under the usual treatment in finely sifted 

 earth. Being somewhat succulent, and producing few roots, 

 they must be sparingly supplied with water and but seldom 

 shifted, more particularly if they are grown in a green-house 

 or conservatory, in which they generally make little progress, 

 and flower indifferently. In order to cause the plants to 

 produce their blossoms in the greatest perfection, the heat of 

 a stove is indispensible. They should be trained either to the 

 wall or the rafters, or when small may be made to entwine 

 round sticks in their pots. It is desirable to keep the plants 

 partially shaded, for then the flowers attain a much larger 

 size, and last longer than if exposed to the direct action of 

 the sun's rays. 



All the sorts may be propagated with facility, either by 

 leaves or cuttings of the branches. These should be planted 

 in pots filled with silver sand, and placed in a frame where 

 there is a little bottom heat. They will form roots in the 

 course of a few weeks. If strong young plants are im- 



