t so
that the bulbs stand 9 in. apart. To ensure sound, crisp, fleshy roots
they require to be grown quickly, therefore moist soil and liberal
manuring is necessary, and the ground kept free from weeds. If fly
becomes troublesome, dust the plants with quicklime early in the day,
while the dew is on them, and repeat the operation as often as is
necessary.

Tussilago Fragrans (_Winter Heliotrope_).--A very fragrant hardy
perennial, flowering in January and February. It will grow in any good
garden soil and bears division. Height, 1 ft.

Twin Flower.--_See_ "Bravoa."

U

Ulex Europaeus Flore Pleno (_Double Furze_).--This elegant, hardy,
evergreen shrub likes a rich, sandy soil, and may be increased by
cuttings planted in a shady border and covered with a hand-glass.
Height, 5 ft.

Umbilicus Chrysanthus.--This little Alpine plant should occupy a warm,
sheltered, and dry situation, and be protected with an overhead screen
in wet seasons. The soil it most enjoys is a mixture of peat and
coarse sand. Its procumbent stalks emit roots. This new growth may be
transplanted in the spring or early summer months. Height, 6 in.

Uvularia.--Beautiful hardy perennials, producing drooping flowers from
May to July. They succeed best in a light, sandy soil, and may be
increased by dividing the roots. Height, 1 ft.

V

Vaccineum Myrtillus and V. Uliginosum.--Attractive deciduous shrubs.
They require to be grown in peat or very sandy loam. In April or May
they produce flowers. They can be increased by dividing the creeping
roots. Height, 1-1/2 ft.

Vaccineum Vitis-Idaea (_Red Whortleberry_).--A neat native shrub
which, with its flowers and clusters of bright red berries, is very
attractive in autumn. A rich, light, sandy soil, moist but well
drained, is necessary, and the position should be sunny so as to ripen
the berries. It may be increased at any time by division. It flowers
from May to October. Height, 9 in.

Valeriana.--An ornamental hardy perennial. It will succeed in any
garden soil, and merely requires the same treatment as ordinary
perennials. It is readily increased by dividing the roots, and
produces its flowers in July. Height, 1 ft.

Vegetable Marrow.--Sow in pots during March or April, and place in a
cucumber frame or on a hotbed, and cover with a hand-glass. Harden
off, and plant out about the third week in May in ground previously
prepared with a heavy dressing of good stable or farmyard manure,
prot