Campanula.--A showy genus of plants, mostly hardy perennials, which need no special treatment. They are readily raised from seed, or division of roots. The less hardy kinds may be sown on a hotbed or in the greenhouse, and when large enough potted off. Campanula Mayii is a grand plant for hanging baskets, and also grows well trained up sticks in a pyramidal form. A rich, gritty soil suits them all. The tall-growing varieties make fine pot-plants. Flower in July. Height, 1 ft. to 5 ft. Canary Creeper (_Tropaeolum Canariense_).--This is eminently suitable for trellis-work or for walls. Its elegant foliage and bright yellow flowers make it a general favourite. It may be raised from seed on a hotbed in spring, gradually hardened off, and planted out in May. Height, 10 ft. Candytuft (_Iberis_).--Very pretty hardy annuals. Sow the seed in autumn in a light, rich soil, or in spring if a less prolonged flowering season will give satisfaction. Bloom in May or June. Height, 1 ft. Canna (_Indian Shot or Hemp_).--For pot-plants on terraces, gravel walks, and such like places, few things can equal and none surpass Cannas. They are half-hardy perennials, and may be increased from seed or by dividing the roots late in autumn, allowing them first to partially dry. File the tough skin off one end of the seed, and steep it in hot water for a few hours before it is sown, then stand it in a hot place till it has germinated. Harden off and plant out, or shift into larger pots in June, using a rich, light soil. Lift and store the roots in autumn in the same way as Dahlias. Different kinds flower at various seasons, so that a succession of bloom may be had throughout the year. Height, 2 ft. to 10 ft. Cannabis Gigantea (_Giant Hemp_).--This half-hardy Hemp is grown for its ornamental foliage, and is treated as above described. Height, 6 ft. Canterbury Bells.--Showy hardy biennials, which may be raised from seed sown in the spring. Transplant in the autumn to the border where they are intended to flower. The seed may also be sown in a sheltered position in August or September. Flower in July. Height, 2 ft. Cape Primroses.--_See_ "Streptocarpus." Caprifolium.--_See_ "Honeysuckle." Capsicum.--Sow early in March in well-drained pots of rich, light, free mould; cover the seed with 1/2 in. of soil, and keep it constantly moist at a temperature of 65 degrees. When strong enough to handle put two or three plants in a 5-in. pot, and replace them in warmth. Keep them rather close till established, then shift them into 7-in. pots. When established remove them to a cold frame and harden off. Plant out at the end of May in a warm situation. Keep them well supplied with water in dry weather and syringe the leaves. By stopping the shoots they become nice, bushy shrubs. Flower in July. Height, 1-1/2 ft.