Galium.--This hardy herbaceous plant blooms in July. It will grow in
any soil, and can be increased by division of the root. Height, 1 ft.
Gardenias.--Plant in a hothouse in fibrous peat mixed with a large
proportion of sand. Give plenty of heat and moisture during growth,
with a thin shade to keep off the sun's midday rays. Lower the
temperature as soon as growth is completed, and in the middle of
summer stand the plants out in the open for a week or two for the wood
to ripen. Height, 3 ft.
Garlic.--Plant small cloves from February to April in rows 9 in. apart
and 6 in. from each other in the row. Lift them when the leaves die
down, dry them in the sunshine, and store in an airy, cool shed.
Garrya Elliptica.--A hardy evergreen shrub, which is very suitable
in its early stages for pot-culture. A light, loamy soil is what it
likes. Cuttings taken in August and placed in sand under a hand-glass
will strike freely, but it is most readily increased by layers. In
October it bears graceful yellowish-green tassels of flowers from the
ends of its shoots. Height, 6 ft.
Gasteria Verrucosa.--This plant grows best in pots of turfy loam and
leaf-mould, to which has been added a little old mortar. Good drainage
is essential. Water freely in summer, and keep just moist in winter.
Keep the foliage clean by sponging. Give plenty of light, and during
warm weather turn the plants out of doors.
Gastrolobium.--Elegant evergreen shrubs which flower in April and May.
They are most suitable for adorning the greenhouse, and grow best in
a soil of loamy peat and sand. Cuttings of half-ripened wood planted
under glass will take root. Height, 2 ft.
Gaultheria.--Dwarf, creeping evergreen shrubs, having dark foliage
and producing white flowers in May, June, or July. They require to be
grown in peat, and are increased by layers. G. Procumbens is suitable
for rockeries, as it only grows to the height of 6 in. G. Shallon
attains the height of 2 ft.
Gaura Lindheimeri.--This free-flowering, hardy, herbaceous plant will
thrive in any light, rich soil. It bears elegant spikes of white
flowers from May onwards, followed by red bracts in September, and is
readily propagated by seeds. Height, 4 ft.
Gazania Splendens.--A showy greenhouse plant. It may be planted in the
open in warm positions, but will require protecting in winter. Grow it
in peat and loam. Cuttings will strike if placed in sand under glass.
It flowers in July. Height, 1 ft.
Genethyllis.--Greenhouse evergreen shrubs which thrive best in sandy
loam and peat. Cuttings of the young wood planted in the same soil and
plunged in heat will take root. Their flowering season is in August.
Height, 3 ft.