Teucrium chamaedrysHummock forming dwarf plant for rock garden or any sunny well drained site. Rose-pink flowers from July to September. Makes a lovely low hedge.
Thalictrum delavayi ‘Hewitt’s Double’ AGMA classic plant for the herbaceous border, having all the qualities of the true species except it lacks the stamens replacing them with masses of mauve sepals. Due to this, the dense plump flowers are exceptionally long lasting. 120cm (4ft). Cultivation as per the species.
Thalictrum kiusianumA diminutive Meadow Rue, barely reaching 15cm (6”) and forming low carpets of finely divided, bluish, maidenhair fern-like foliage, through which the frothy shimmering purple flowers emerge from May to August. Although a woodlander it is equally happy in full sun.
Thalictrum sphaerostachyumA tall species with strong upright stems growing to 1.8m (6ft). It has striking blue-grey foliage and fluffy heads of complimentary pale yellow flowers through July and August. Suitable for sun or partial shade in fertile soil.
Thymus ‘Coccineus Major’This thyme is easy and useful. Enjoying a sunny well drained situation it is suitable for rockery, raised bed, paved areas and containers.
Tiarella wherryi ‘Bronze Beauty’A clump-forming perennial with attractive foliage. In spring it is covered in frothy flower spikes, starting pink and turning white as they open. Best in moist humus rich soil in shade where it will slowly spread to form clumps. 30-45cm (12-18”) high.
Tricyrtis formosana Stolonifera GroupA strong growing perennial for a shaded or semi-shaded site. The flower stems rise to 75-90cm (30-36”), and during autumn are adorned with loose heads of multiple flowers. Each exotic bloom flower has splayed petals of a mauve-maroon colour overlaid with deeper purple speckling, yellowing to the throat and red stigmas.
Trifolium repens ‘Dragon’s Blood’Grown for its interesting clover-like foliage in shades of red and pale green. Cut back regularly to keep it looking fresh. 10cm (4”).
Trifolium repens ‘Green Ice’Grown for its interesting foliage which forms dense carpets. Leaves are dark green in the centre surrounded by a frosting of pale silvery-green. Pinkish-white Clover flowers are borne in summer. Regular cutting back will keep it looking fresh. 10cm (4”).
Trifolium repens ‘Purpurascens’A vigorous form of Clover with foliage heavily marked chocolate purple. Grows well in a moisture-retentive soil and treat as Trifolium repens ‘Green Ice’ to a summer haircut. 10cm (4”).
Trillium albidum Sweet TrilliumAs the species name would suggest, a white flowered species, producing showy white blooms in late spring often ageing to blush-pink, all held above large glossy green leaves. Once established it forms a robust plant. 25cm (10)”.
Trillium erectum Maroon AGMAn easily grown trillium for loose leafy soil in shade. The flowers are made up of three, maroon-red recurved petals, contrasting with three green sepals and bright yellow stamens, opening in April to May. 30cm (12”).
Trollius chinensis ‘Golden Queen’ AGMIn late spring, it presents its party piece with large 7cm (3”) flowers, each flower comprising five golden-orange sepals that surround the narrow upright orange crown of petals; looking not unlike a stranded golden jellyfish. Repeat flowering if old flower stems are cut off. When planted in groups next to a pond or in a damp area it looks fantastic. 60-90cm (2-3ft).
Trollius x cultorum ‘Lemon Queen’Not surprisingly, a lemon-yellow form of the Globeflower, flowering from May to July with double flowers held on upright stems rising to 60cm (2ft).
Tulipa sprengeri AGMA native of N.W. Turkey, this is one of the latest blooming of all Tulips, bearing pure red blooms, with bright yellow stamens nestled inside. A first-rate bulb for either the herbaceous border or naturalising in grass where it will self seed freely. 30-45cm (12-18”).
