436 THE BOOK OF GARDENING. 



Griselinia littoralis, planted in rich, well-drained soil, and a 

 sunny spot, is quite hardy in the South and West of England, 

 forming a neat bush, with erect stout stems and roundish, thick, 

 pale green leaves ; it is, moreover, a good sea-coast shrub. 

 G. lucida and G. I. macrophylla are handsome glossy-leaved 

 shrubs, but only thrive out of doors in favoured localities. 



Helianthemums (Sun Roses). — These are charming plants of 

 dwarf habit, well adapted for the rock garden and as margins to 

 beds of dwarf-growing shrubs. A bank sloping to the south 

 suits them admirably, as they only flower freely when exposed to 

 the sun. They succeed in ordinary soil, which, must, however, 

 be well drained, a cold, stiff, heavy soil being the most unsuitable 

 for them. H..formosum . forms a much-branched bush 3ft. or 4ft. 

 high, and in summer bears a profusion of yellow flowers spotted 

 with black. During severe winters it sometimes gets cut, hence 

 the advisability of a sunny bank, so as to enable it to 

 thoroughly ripen its growths. H. Libanotis grows freely, and 

 carries a wealth of yellow flowers in July. H. polifolium is a 

 compact-growing species, with white flowers. H. ocymoides 

 (H. algarvense) grows about 2ft. high, and is of diffuse habit. The 

 large clear yellow flowers are spotted with purple at the base. 

 H. vulgare and its beautiful varieties (single and semi-double) 

 have richly-coloured flowers varying from white to yellow and 

 orange, and from red to deep crimson. 



Hymenanthera crassifolia. — See page 458. 



Hypericum Hookerianum (If. oblongifolium) is a vigorous, 

 hardy, free-blossoming Himalayan species, with deep green leaves, 

 and in August carries clusters of lovely buttercup-yellow flowers 

 of large size. This is undoubtedly one of the most meritorious 

 of the stronger-growing Hypericums, and is well suited for 

 grouping on the turf. 



Ilex Aquifolium (Holly) is a splendid evergreen, and 

 indispensable in ornamental planting. A tree, 30ft. high, with its 

 lower branches clothed with prickly, polished-green leaves sweeping 

 the ground, is indeed a handsome picture. Although it flourishes 

 in the shade, it is perhaps the finest evergreen for planting as 

 isolated specimens in the park, on the outskirts of the lawn, or 

 in any position with full exposure. As a hedge-plant, its value 

 is beyond question, and in this position it forms a dense, im- 

 penetrable, and ornamental breakwind. Holly is easily accommo- 

 dated, and grows, freely in all soils unless the position is a damp 

 and boggy one. Groups of Hollies, with a few spring-flowering 

 trees intermixed, such as Almonds, Peaches, Hawthorns, 

 &c, produce a telling effect in March and April, when the 

 delicate-tinted blossoms of the last-named are seen to excellent 

 advantage against a background formed by deep green Holly 

 leaves. The autumn and winter effect, when the Holly is carrying 



