[Named from tiara, a particular kind of head-dress, a mitre, in allusion to the form of its capsule.]
Tiarella cordifolia. - Heart-leaved Tiarella. - This fine dwarf plant is found in the woods in most of the Northern States. The roots are creeping, and send out runners. Leaves on long hairy petioles, heart-shaped, lobed and toothed, hairy on both sides. Flowers entirely white, on long racemes six or eight inches high. In blossom in June. A hardy perennial, related to Saxifrage, and easily cultivated in the flower-border.
[Named from tigris, the tiger, the flowers being spotted.]
Tigridia Pavonia. - Mexican Tiger-Flower. - This, and T. conchiflora, which is by some considered as a distinct species, and by others as only a variety, are exquisitely beautiful, but not sufficiently hardy to endure much frost. The bulbs are tunicated, producing from one to four stems each, from eighteen inches to two feet high; the flowers are of short duration. It is born to display its glory but for a few hours, when the sun totally destroys its beauty; but to compensate for this sudden decline it continues to produce flowers a number of weeks.
The shape of the flower is singularly curious, and the coloring of each variety gorgeous. The flowers of T. Pavonia, are of the richest scarlet imaginable, variegated with a bright golden-yellow, spotted with black. The ground-work of T. conchiflora is of the richest orange, variegated with light-yellow, also spotted with black. No flowers can exceed these in beauty; but nature does not lavish all her riches upon one flower; in this there is no scent. The flowers are large; produced in succession nearly all the season. The bulbs should be planted about the middle of May, about two inches deep in any rich garden soil; they require no particular care. The bulbs and offsets should be taken up in October, and dried; but be particular not to expose them to frost while drying, or at any other time, as that would destroy them. They may be kept in dry sand, saw-dust, or moss, until the time of planting in the spring. The mice are very fond of the roots, and if they find them, but few, if any, will be left to plant.
[Named in memory of John Tradescant, gardener to Charles 1.]
Tradescantia Virginica. - Spider-wort. - With its va-rieties are interesting border-flowers, on account of the continual succession of fine blue or white flowers, which are produced every morning, from May to September. It has long, grass-like foliage; flowers on stems one and one-half foot high, in umbel-like clusters. There is also a variety with double flowers, of a reddish-purple. None of them are desirable for bouquets, as the flowers close, and never open in water; hardy perennials; propagated by dividing the roots, which multiply very rapidly!
[Name from trilix, triple, as it has all its parts in threes - three styles; three petals; three sepals (leaves of the calyx); and three leaves on the stem.]
This is a very handsome species of this curious genus; indigenous, but rarely found. I shall not forget the pleasurable surprise I experienced some thirty years since, as I came unexpectedly upon a bed of it in the woods of Lancaster, Mass., the first time I had seen the plant. The patch in full bloom, five or six feet in diameter, was indeed beautiful. It was situated in a dark, shady part of the woods, in a rather peaty soil. This species is exclusively a North American plant. The flowers are two inches in diameter, pure white; the petals pencilled at the base with rich crimson-purple. The fruit is also very ornamental, being a large scarlet berry.
Is found in Pennsylvania and southward; it is a dark-chocolate color, the leaves beautifully variegated with dark and light-green.
T. grandiflorum, is probably the handsomest of the species. The petals are one and one-half to two inches long, white at first, gradually changing to a dark-rose color; the berry dark-purple. It is found in Vermont, Wisconsin, etc.
Although the least beautiful of the genus, it is still elegant and interesting; the flower is pure white, much smaller than that of T. pictum, T. erectum (upright), is of a dull purple color, larger flowered than T. cernuum.
The Trillium is difficult to keep in the flower-garden. The only chance of success in their cultivation would be upon a bed of peat and leaf-mould, in a shady and rather moist locality. They may be increased, though slowly, by the division of the roots.
[From Greek words signifying three and to cut, in allusion to the three sharp edges of the ends of the leaves.]
Tritoma uvaria. - A native of the Cape of Good Hope, and has given rise to several varieties, which differ somewhat in their foliage and flowers as well as their time of blooming. All thrive best in peat soil, but will do very well in any other light earth. They are not hardy enough to stand our winters, unless with great care, and must therefore be kept in the grren-house or perhaps the cellar, though I have succeeded in keeping them in the open ground by covering them deeply with earth.
These are splendid late-flowering, sub-evergreen, herbaceous plants, forming large, robust, stemless leaf-crowns, from the centers of which their tall flower-scapes; from three to five feet in height; are produced in the late summer and autumn months,- with large terminal, densely-flowered racemes of rich, pendant, orange-red tinted flower-tubes, each raceme from one to two feet in length.
They are admirably adapted for forming large effective groups and beds, in which the numerous terminal flame-colored blossoms form a stately distant or mediate effect. The species thrive in all ordinary rich garden soils, or in equal portions of loam, peat and leaf-mould, and bloom from the middle of August until the end of September. Tritoma serotina unfolds its richest colors in October, and in fine seasons prolongs its ornamental effect into November.