Tobacco Plants.—­See “Nicotiana.”

Tobacco-Water.—­Boil 2 oz. of shag, or other strong tobacco, in a pint of water.  Apply with a soft brush.  This is a deadly poison to insects.

Tomatoes (Love Apples).—­Those intended to be grown in the open should be raised from seed sown the first week in March in pots of very rich, light mould.  Place them in a cucumber-house or other gentle heat, and when the second leaf appears, pot them off singly, keeping them near the glass and well watered.  Towards the end of May remove them to a cold frame to harden off, and plant out as soon as fear of frost is over, in deeply-dug and moderately manured ground, against a south wall fully exposed to the sun.  Train to a single stem and remove all lateral growths.  When the plants are 3 or 4 ft. high pinch off the tops to prevent further growth and throw strength into the fruit.  Watering should cease as soon as the blossom-buds appear, except in periods of very severe drought.  When grown under glass Tomatoes need to be trained in much the same way as Grape Vines.  Constant attention must be given to removing all useless shoots and exposing the fruit to air and light.  An average temperature of 60 degrees should be maintained, with a rather dry and buoyant atmosphere.

Toothwort.—­See “Dentaria.”

Torch Lily.—­See “Tritoma.”

Torenia.—­These stove and greenhouse plants require a rich soil.  They may be increased by seed or division.  They flower during June and July.  Height, 6 in. to 9 in.

Tournefort.—­See “Crambe Cordifolia.”

Tradescantia Virginica (Spider Wort).—­A hardy herbaceous plant.  In a light, rich soil it will flower in July.  Height, 1 ft.  There are other varieties of Tradescantia; they all make good border plants, thrive in any situation, and are continuous bloomers.

Transplanting.—­Plants may be transplanted as soon as they are large enough to handle.  They must be lifted carefully with a small trowel, or if they are very small, such as Golden Feather, with a still smaller blunt article, disturbing the roots as little as possible.  It should be done when the ground is wet, and preferably in the evening.  In dry weather they should be well watered twelve hours before they are disturbed.  Shade them from sun for one or two days.  Cabbages, Lettuces, Cauliflowers, Broccoli, Kale, and other members of the Brassica family must be transplanted, or they will be a failure.  Root crops such as Carrots, Parsnips, Turnips, etc., must not be transplanted, but thinned out.  Celery may be transplanted in June or July.

Traveller’s Joy (Clematis Viorna).—­This hardy climbing plant grows best in a light soil, flowers in August, and is increased by layers of the young shoots in summer.  Height, 12 ft.

Trees, Plants that Flourish under.—­Ivy, St. John’s Wort (Hypericum Calycinum), early-flowering White Aconite.