USEFUL GREENHOUSE PLANTS 299 



in the spring in the way of a Fuchsia. They are often used for bedding 

 out, but can also be well grown in pots, for which purpose some of them 

 are admirably adapted. Summer flowering kinds are the distinct creamy- 

 white Veitchii and the rich yellow Clibranii, which is in growth one of the 

 most graceful of all Calceolarias. Two distinct kinds C. deflexa and 

 C. amplexicaulis will flower during the autumn and winter, as also will 

 C. Burbidgei. The two last named are often used for summer bedding. 



Calla. See Richardia. 



Callistemon saligmis. This, often known as Metrosideros flori- 

 bunda, is called the Bottle Brush Plant. The flowers, with their long 

 scarlet stamens, are arranged around the shoots in the form of a bottle 

 brush. It needs the same treatment and soil as an Azalea. 



|Camellia. The shining green leaves of the Camellia are ornamental 

 at all seasons, and in spring, when the flowers appear, the different 

 varieties are bright and effective. Many of the Camellias are hardy in 

 several parts of the country, hence a cool greenhouse is all that they 

 require. After the flowering season is past they may be kept under 

 glass until the middle of June to allow the young shoots to become 

 moderately firm, when they should be placed out of doors until the 

 autumn, and if possible in a position where they are somewhat shaded 

 from the full rays of the sun. A mixture of two-thirds loam to one- 

 third peat with a little sand will suit them well, but take care not to 

 put them in too large a pot, as the Camellia will stand for years and 

 flower well without being shifted. As the buds develop a little weak 

 liquid manure will be of service, while bud dropping, frequently a source 

 of trouble, is often caused by an insufficient circulation of air. Apart 

 from its culture in pots or tubs, the Camellia does well planted out in the 

 greenhouse or conservatory, provided a well-drained border is prepared 

 for the roots. For covering a back wall it is one of the most beautiful 

 plants we have, as winter and summer alike it is clothed with foliage. 

 There is a long list of varieties, the old double white (alba plena) being 

 still a general favourite. Single -flowered Camellias continue to increase 

 in popularity, the blossoms being altogether lighter and more elegant 

 than the double ones, and the central tuft of golden anthers impart quite 

 an additional feature to the flower. Good single kinds are alba simplex, 

 white ; Jupiter, rosy-red ; Mercury, crimson ; Mars, rosy-red ; Snow- 

 flake, pure white ; and Waltham Glory, deep scarlet. 



Campanula. Most of the Campanulas, or Canterbury Bells, are 

 hardy, but the creeping kinds C. isophylla, with blue flowers, and C. 

 isophylla alba } with white, as well as the newer C. Mayi, with hoary leaves 

 and pretty porcelain blue bells, form delightful plants when grown in 

 suspended pots or baskets, and with attention they will flower through- 

 out the greater part of the summer. They are increased by dividing 

 the plants in the spring just before growth recommences. The peach- 

 leaved Bellflower (C. persicifolia), and its varieties, grandiflora, in par- 

 ticular, are well adapted for pot culture. The Chimney Bellflower 

 (C. pyramidalis) is also useful, and it is surprising that amateurs do not 

 grow plants of such pronounced beauty more freely. It is simply neces- 



