==Sparaxis==

See instructions under Ixia at page 338.

==Tigridia, or Ferraria==

The short-lived blossoms of the Tiger Flower are most gorgeously painted, and differ from everything else of the great family of Irids to which they belong.  Much finer flowers are produced in the border than when grown in pots, and they present great variety, scarcely any two amongst hundreds showing flowers exactly alike.  The usual time of planting outdoors is March or April, at a depth of three or four inches, and the flowers appear in June.  Sandy loam and peaty soils are especially suitable.  Although Tigridias are not quite hardy they will on a dry border pass the winter securely beneath a protection of litter.  But where the soil is damp it is safer to lift them in October and store in the same manner as Gladioli.  A bed of Tigridias makes an agreeable ornament in front of the window of a breakfast-room, as the flowers are in a brilliant state in the early hours of the day.

==Triteleia uniflora==

This little gem belongs to the spring garden, and should be the companion of the Dog’s-tooth Violet, the Crocus, and the Snowdrop.  It will grow in any soil, and will produce an abundance of its violet-tinted white flowers, which, when handled, emit a faint odour of garlic.  As a pot plant for the Alpine house it is first-rate.  In the open, plant in October two inches deep.

==Tritonia==

Tritonias are more showy than the Ixia or Sparaxis, but belong to the same group of South African Irids, and require the same treatment.  They may be planted out in April, if prepared for that mode of cultivation by putting them in small pots in November or December.  It is not advisable to tie them to sticks, for they are more elegant when allowed to fall over the edge of the pots, and suggest the ’negligence of Nature.’

==Tropaeolum==

=T. tuberosum.=—­A few of the tuberous-rooted Tropaeolums are hardy, but it is not wise to leave them in the ground, for damp may destroy them, if they are proof against frost.  They are all graceful trailing plants, adapted for covering wire trellises, and may be flowered at any season if required, though their natural season is the summer.  The compost in which they thrive best is a light rich loam, containing a large proportion of sand.  The stems are usually trained on wires, but they may be allowed to fall down from a pot or basket with excellent effect, to form a most attractive tracery of leafage dotted with dazzling flowers.  The sunniest part of the greenhouse should be devoted to the Tropaeolums, and special care should be taken in potting them to secure ample drainage.

=T. speciosum.=—­This showy variety is quite hardy, and is largely grown in Scotland where it may frequently be seen on cottage walls.  The roots may be planted in either spring or autumn, and a moist, somewhat shaded position best suits the plant.