116 THE AMATEUE's GREENHOUSE 



new growth. If required to flower in winter treat as recom- 

 mended for bouvardias. 



Cheieanthus. — The Double Wallflowers are to be valued 

 for the conservatory, and they may, in the course of years, be 

 grown to a large size in the form of noble trees. For all ordi- 

 nary purposes two-year old plants are the most suitable. The 

 cuttings are struck under a hand-glass as soon as they can be 

 had, and when nicely rooted are planted out at a distance of 

 nine inches apart, in rows about fifteen inches from each other. 

 The young shoots are stopped two or three times, and in 

 September they are taken up and planted a little further apart 

 each way. This serves the double purpose of checking the 

 growth and rendering them better able to withstand the effects 

 of a severe winter, and also promotes the formation of a mass 

 of fibrous roots. They are not allowed to flower the follow- 

 ing spring, and the young shoots are stopped all over the 

 plants three or four times during the early part of the summer, 

 but no stopping is done after the end of June, as the remain- 

 ing part of the summer is necessary to ensure the thorough 

 maturation of the young growth. By the middle of Septem- 

 ber they should be taken up and put in eight-inch pots. 

 Small plants are of no use in the conservatory, for if they are 

 not large enough to produce solid heads of bloom two feet 

 across they are anything but eff'ective. The double yellow and 

 red, known respectively as C. luteus fi.-pl. and C. purpureus 

 Ji.-pl-, are the only kinds suitable. 



Calceolaeia. — Of this well known genus there are two dis- 

 tinct sections, known as the "herbaceous" and the "shrubby." 

 The first is the most important section, because only fit for pot 

 culture, and when well done presenting a wonderful show of 

 colour with endless variety of beauty. They require peculiar 

 management, and those cultivators will alone succeed who 

 earnestly give their minds to the business. Nevertheless, 

 they are very easy to manage, and those who will follow our 

 directions will surely succeed. It is best to begin with seed, 

 and to sow it, as soon as ripe, in pans filled with light loamy 

 compost, and then place the pans on a moderate hotbed or 

 shut them up in a propagating house, or put them in a 

 close corner of the greenhouse and cover with a bell-glass. 

 They must be kept constantly moist, and as soon as the plants 



