. The Book of gardening; a handbook of horticulture. Gardening; Floriculture. ON TREES AND SHRUBS. Itea virginica (Virginian Willow), which is rare in English gardens, loves a cool, moist soil, and a shady position. It is a North American shrub, bears abundant racemes of white flowers in July and August, and usually grows about 4ft. high, forming a neat, compact bush. Jamesia AMERICANA, a native of the Rocky Mountains, forms a low, much-branched bush, with greyish-green leaves, and in June bears compact terminal clusters of white flowers. (Ordinary soil and a rather shady position suits this r
. The Book of gardening; a handbook of horticulture. Gardening; Floriculture. ON TREES AND SHRUBS. Itea virginica (Virginian Willow), which is rare in English gardens, loves a cool, moist soil, and a shady position. It is a North American shrub, bears abundant racemes of white flowers in July and August, and usually grows about 4ft. high, forming a neat, compact bush. Jamesia AMERICANA, a native of the Rocky Mountains, forms a low, much-branched bush, with greyish-green leaves, and in June bears compact terminal clusters of white flowers. (Ordinary soil and a rather shady position suits this rare shrub admirably. JuGLANS (Walnuts).—These are valuable for ornamental planting, and prized for their nuts, or fruits, which are abundantly produced on large trees. The genus is generally represented in parks and pleasure- grounds by J. regia, which has been culti- vated in this country upwards of 300 years, although noble specimens of the Black Walnut {/. nigra) are to be seen in various parts of the British Isles. There are, however, other species and varieties deserving of recognition, by reason of their ornamental qualities and freedom in growth. The genus comprises less than a dozen species, most of which hail from North America, and as they are all procurable in this country they might be employed more frequently in the park, especially for autumn effect. J. nigra is a first-rate town tree. It is vigorous in growth, with long branches and graceful foliage, which in September turns yellow, and is very effec- tive in the landscape. J. regia laciniata, sometimes met with under the names of J. heterophylla and J. filicifolia^ although not so vigorous as the type, is in some Fig. 251.—Kerria ja- respects superior to it. It is slower in ponica flore-pleno. growth, and its slightly drooping branches, clothed with rich green, deeply-cut leaves, are very handsome. It makes a lovely lawn tree, and fruits freely. J. mandschurica is a very uncommon and handsome Walnut from Amu
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