Hardy and Half-hardy Plants 



109 



Thalictrum. A large genus of plants chiefly remarkable for their 

 elegantly cut foliage and graceful appearance. Although many species 

 varying from 6 in. to 4 ft. high are dealt in by hardy-plan tsm en, very few 

 are grown by marketmen. One of the most popular kinds is the Maiden- 

 hair Meadow Rue (T. minus or T. adiantifolium), which resembles a deep- 

 green Maidenhair Fern in appearance, and is frequently mistaken for one. 

 It makes a graceful pot plant, and being a native of Britain is quite hardy. 

 The foliage is useful for cutting and mixing with other flowers. It may be 

 increased from seeds or by division. Another useful species is T. Delavayi, 

 from China, 2-4 ft. high, having finely divided leaves and lilac -purple 

 flowers with conspicuous bunches of yellow stamens. 



Thunbergia alata. A pretty half-hardy South African climber with 

 heart-shaped sagittate leaves, and bell-shaped flowers varying in colour 

 from pure white to pale and deep yellow, orange, and purple with a dark- 

 coloured centre, in such varieties as alba, aurantiaca, sulphurea, Doddsi, 

 Bakeri, Fryeri, &c. They are all climbing in habit, and may be easily 

 raised from seeds sown in gentle heat in March, for sale in pots or boxes 

 from April to June. 



Thymus (Thyme). 

 Many kinds of Thyme are 

 grown for rock-garden pur- 

 poses, among the best being 

 carnosus erectus, 9 in.; the 

 golden and silver forms of 

 citriodorus', ericcefolius, 4 

 in.; lanuginosus; micans, 

 2 in.; Serpyllum and its 

 varieties album, coccineum, 

 and splendens\ villosus, &c. 

 Tiarella cordifolia(FoAM 

 FLOWER). A pretty North 

 American rock or border 

 plant, with heart-shaped 

 lobed leaves, and feathery 

 sprays of white flowers 

 from April to June. Grows 

 in ordinary soil, and is in- 

 creased by division. 



Tigridia(TiGER FLOWER). 

 A genus of handsome bul- 

 bous plants from Mexico, 

 having sword-shaped leaves 

 and large flowers gorgeous 

 in colour, white, red, orange, 



pink, and purple being the chief tints. They like rich sandy soil, warm, 

 sunny positions, and are increased by division, The best-known species is 



Fig. 248,Tigridiapavonia 



