Tropaeolums—­

JARRATTI (scarlet, orange, and black) are remarkable for a slender and graceful growth.  Well adapted for covering wire globes, trellises, etc.

LOBBIANUM (various colours).—­Elegant dwarf climbers, suitable either for the conservatory or for outdoor culture.  They may also be used for bedding if planted thinly and kept pegged down; or may be grown in window-boxes.  Height, 6 ft.

PENTAPHYLLUM (red) is slender and graceful, and an elegant climber.

POLYPHYLLUM (yellow) succeeds best against a south wall.  It is hardy, has rich abundant glaucous foliage, and is a particularly fine climber.

SPECIOSUM (scarlet).—­Of wild, graceful, luxuriant and slender growth.  Fine for covering walls and fences, festooning arches, etc.  Plant at the beginning of October in an eastern aspect or at the base of a north wall, the soil and atmosphere being moderately moist.  Bury the roots 4 in. deep.

TUBEROSUM (yellow and red) is quite hardy, and may be planted in any situation.

Generally a light, rich soil is most suitable.  The greenhouse varieties may be increased by cuttings placed in sandy soil under glass.  The tuberous-rooted kinds should be taken up in winter and kept in sand till spring, when they may be planted in a sheltered part of the garden.  The annuals merely require to be sown in the open in spring.  They flower in July, August, and September.  Height, 1 ft. to 10 ft. (See also “Canary Creeper.”)

Trumpet Flower.—­See “Bignonia.”

Tuberose.—­Plant the bulbs in January in a mixture of sandy loam and rotten dung, or leaf-mould, using a small pot for each bulb.  Plunge them in a hotbed, taking care that the temperature does not fall below 60 degrees, and withhold water until the foliage appears, when a moderate amount should be given.  When the pots are full of roots, shift the plants into larger ones, and grow on in a house with a uniform high temperature and moist atmosphere.  For a succession of bloom place the roots in a cold frame and cover with cocoanut fibre until growth begins, then remove the fibre, water moderately, and transfer the most forward plants to the conservatory.  Bloom may be had all the year round by planting in succession from September to June.

Tulips.—­Drainage may be considered as the chief means of success in the cultivation of these showy spring flowers.  The soil they like best is well-rotted turf cut from pasture land and mixed with a moderate amount of sand, but they will thrive in any ground that is well drained.  The bulbs should be planted during October and November about 3 in. deep and 5 in. apart, either in lines or groups, and they retain their bloom longest in a shady situation.  As soon as the leaves begin to decay the bulbs may be taken up, dried, and stored away, keeping the colours