hey may be planted in the open, in
June, choosing a warm, sheltered situation and rich, loamy soil.

Centaurea.--The hardy annual and biennial kinds merely require to be
sown in the open in the autumn. The half-hardy ones must be sown on
a slight hotbed, where they should remain till strong enough to be
planted in the border. Cuttings of the perennials should be inserted
singly in 3-in. pots filled with sandy loam, placed in a shady, cool
frame till established, and then watered very carefully. The different
varieties vary from 6 in. to 2 ft. in height, and flower from June to
August.

Centauridium Drummondi.--A blue hardy annual which may be sown in the
open in spring.

Centranthus.--Ornamental hardy annuals. Sow in the open border in
March in any good, well-drained soil. They flower in June. Height,
1-1/2 ft.

Cephalaria (_Yellow Scabious_).--Strong-growing hardy perennials,
suitable for backs of borders. They succeed in any garden soil, and
are propagated by seed or division of root. Height, 3 ft. to 5-1/2 ft.

Cephalotaxus (_Podocarpus Koraiana_).--Handsome conifers of the Yew
type. These shrubs are quite hardy, and in favoured localities will
produce berries. They succeed best in a damp, shady spot, and may be
increased by cuttings planted in heavy loam.

Cerastium Biebersteini.--A hardy trailing perennial which will grow in
any light soil, and may be increased by suckers. It flowers in June.
Height, 6 in.

Cerasus Padus (_Bird Cherry_).--An ornamental tree; useful in the
shrubbery in its earlier stages, as it will grow in any soil. It may
be increased by seed, budding, or grafting; flowers in April. Height,
35 ft.

Cerinthe.--Hardy annuals, suitable for any ordinary soil, and needing
merely ordinary treatment. A grand plant for bees. Height, 1 ft.

Cestrums.--Charming conservatory plants, flowering early in spring.
Cuttings may be taken in autumn, placed in small pots in a light
compost of peat and sand, and given a little bottom-heat. The young
plants may be topped to form bushy ones. Re-pot before the roots have
filled the small pots, using two parts loam, one part peat, and one
part sharp sand. C. Parqui is suitable for the open if planted in a
sheltered position.

Chamaepeuce.--Half-hardy perennial Thistle plants of little merit. Any
soil suits them, and they may be increased by seed or division. Flower
in June. Height, 2 ft. to 3 ft.

Chamaerops (_Chusan Palm_).--Fine greenhouse plants, delight