HAEDY HERBACEOUS PERENNIALS. 



361 



large Marguerite Daisies, dark Clove-Carnations, or pink 

 Hoses. The flowers are borne on light graceful panicles. 

 One or two dwarf species are pretty for the rockery. 

 Propagation by seeds, division, or cuttings. 



G. cerastioides. White, 3 inches. Himalaya. 

 G. paniculate. White, 2 to 3 feet. Siberia, &c. 

 G. repens. Rose-white, 4 inches. Europe. 



Hacquetia. — The only species is H. Epipactis, a dwarf 

 plant with close umbels of golden flowers surrounded by 



Fig. 439.— Helleborus niger. 



leaf-like bracts arranged in a star-like involucre, the whole 

 not more than 1^ inch in diameter. It flowers from 

 February to May, the leaves appearing later. It is suit- 

 able for the rock garden. Height, 2 inches. 



Hedychium gardnerianum (Garland Flower) is a 

 striking plant both as regards foliage and flowers, and 

 may be grown in a moist sunny border in the open air 

 in the warmer parts of the country. It has Ginger-like 

 rhizomes, stems 4 feet high bearing long sword-shaped 

 leaves and large terminal heads of rich yellow flowers. 

 Himalaya. 



Helen ium. — Strong-growing Composites suitable for 

 the back row in the herbaceous border, or in shrubberies. 

 The flowers are mostly yellow, and they are showy in 

 autumn. Any soil suits them, and division is the best 

 way of propagation. 



H. autumnale. Yellow, 6 feet. North America. 



,, var. pumilum. Golden-yellow, 2 feet. 



H. Bolanderi. Yellow, with dark centre, 2J feet. California. 

 H. Hoopesii. Orange-yellow, 2h feet. North-west America. 



Helianthus. — The perennial Sunflowers are among the 

 most useful of autumn-flowering plants. Many attain a 

 height of 8 feet or more, and they present a good deal of 

 variety in habit, flowers, and leaves, although nearly all 

 are yellow. By combining them with the perennial Asters 

 many fine effects may be produced in autumn. They grow 

 well in any soil, but prefer a rich, deep loam. Propagate 

 by division and seeds. 



H. decapetahis. Sulphur-yellow, 6 feet. North America. 

 11. doronicoides. Small, yellow, 4 feet. North America. 

 H. giganteu8. Bright-yellow, 7 feet. North America. 



„ var. H. G. Moon. Rich golden-yellow, 4 to 5 feet. 



H. multiflorus. Golden-yellow, 5 feet. North America. 

 ,, Numerous garden forms. 



« H. orgyalis. Golden-yellow, dark eye, 7 feet. North-west 

 America. 

 H. rigidus. Rich yellow, habit good, 4 feet. North America. 



Helleborus. — A genus of valuable plants on account 

 of their long period of blooming, viz. from October till 

 April. Ordinary soil suits them, but the position should 

 be moist and slightly shaded. They dislike disturbance, 

 and succeed well if planted in the wild garden or 

 shrubbery. 



The three species described below are the most easily 

 procured. There are also many hybrids which are equally 

 valuable for the open border. They are chiefly the result 

 of crossing H. colchicus, a purple - flowered species, with 

 forms of H. niger, H. guttatus, H. abschasicus, &c. 



Propagation may be effected by root division if the 

 plants are strong. 



H. fcetidus. Greenish, 1 foot. Europe (Britain). 



H. niger (Christmas Rose) (fig. 439). White, 1 foot. Europe. 

 Numerous vars. 



H. orientalis. Purplish-red, 1J foot. Greece, Asia Minor. 



Hemerocallis (Day-Lily). — Easily grown summer- 

 flowering plants with large, fragrant, yellow- and orange- 

 coloured flowers. They are vigorous growers, thriving 

 in any garden soil ; suitable for grouping, mixed border, 

 shrubbery, or rockery. They are effective, too, by the 

 water-side. Increased by division of the roots. 



H. aurantiaca. Orange-red, 3 feet. Japan. 



var. major. Larger flowers and broader leaves 

 than the type. 



II . Dumortierii (fig. 440). Bronzy-orange and yellow, 2J to 3 

 feet. Japan, &c. 



H. Dumortierii, var. major. Larger flowers. 



H. flava. Clear-yellow, fragrant, 3 feet. South Europe. 



H. fulva. Dark orange-coloured, 3 feet. South Europe. 



H. Thunbergii. Pale-yellow, 2 feet. Japan. 



Fig. 440.— Hemerocallis Dumortierii. 



Heracleum (Cow-Parsley). — Large, bold-leaved, um- 

 belliferous plants, with enormous heads of whitish 

 flowers, on stout stems 8 feet or more long. Suitable for 

 wild gardening or rough places. The best species is H. 

 villosurn (giganteum), a native of the Caucasus. Propa- 

 gation by seeds. 



