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The Bitternut from the Eastern USA is the best hickory for growing in the UK, forming a strong upright tree to about 30m given time. The pinnate foliage is composed of much finer, slimmer, smaller leaflets than most and turns to rich butter yellow shades in autumn. the winter buds are golden yellow. Suited to any reasonable soil.
The mighty Pecan of the USA makes only a small to medium tree here and is thought not to be a long term success, though I have watched a tree grow for over twenty years in Stroud, Gloucestershire and it's still in rude health. Perhaps our climate has changed? Handsome, large pinnate leaves with up to 17 leaflets. For a sunny site.
A naturally relatively small growing Sweet Chestnut from China with long coarsely serrated handsome foliage. Rarely seen in cultivation, though reaching 18m tall at Borde Hill in Sussex after 80 years. Used for chestnut production in China. Very hardy.
Catalpa fargesii f. duclouxii
This Chinese 'Bean tree' is quite different to the norm due to its spectacular lilac-pink foxglove-like flowers, stained yellow with red-brown spots, borne in large heads in July. Rarely offered, it makes a beautiful, summer flowering, small to medium tree with elegant long-pointed leaves. Any well drained soil in sun. Importantly, these are grafted, for early flowering.
Cedrus deodara 'Robusta'
An unusual form of the Himalayan Cedar with exceptionally long stout needles, up to 8cm long, forming a wide spreading medium sized tree with drooping branches. Hardy and easy.
Cephalotaxus fortunei (new)
The 'Chinese Plum Yew' makes a hardy, bushy, large, rounded shrub or small tree, broader than tall. The leaves are up to 9cm long and female trees bear edible olive-brown fruit up to 3cm long in autumn. As shade tolerant as a Taxus, this can also be grown in full sun. From Central and South Western China and suited to most soils, including chalk.
One of the loveliest of all 'Judas trees' and remarkably distinct from the norm. In this very rare Chinese species the small pea flowers are a soft pink and, more importantly, are held in dangling racemes, unlike any other species, in May. It forms a more upright and potentially larger tree than C. siliquastrum. Hardy and easy in full sun. This is 100% correctly named.
Grown both for its salmon-pink and white blossom in spring and for the very large, yellow, pear-shaped fragrant fruit, this large shrub from W. China will reach up to 3m x 3m if left unpruned. The fruit are the largest in the genus and make very good eating when cooked, often used in jellies and pies and very good combined with apples. Tough and easy.
Choisya arizonica 'Whetstone' (new)
New to the UK, this was found originally in the mountains of S. Arizona by Sean Hogan and was selected for its winter red tint, fine foliage, and extra vigour. Beautiful fingered foliage with very narrow leaflets to only 5cm long on a rounded plant to only 90cm high, covered in a mass of large scented white flowers in summer, Drought tolerant, for sun to semi-shade.
Cistus ladanifer 'Blanche'
A pure white flowered selection of this comparatively large growing (2m) aromatic species of sun rose. Big white, yellow centred flowers up to 11cm across in June/July over slim, lance shaped, leathery foliage. Equal to the quality of the flowers is the excellent fragrance emitted from the sticky resinous foliage, which wafts about on the breeze. Sun and drainage.
Cistus salviifolius 'Prostratus'
A dwarf, grey leaved shrub, prostrate and spreading in this form, with yellow centred white flowers very freely produced in June/July. Very drought tolerant and best in full sun in poor, well drained soil.
Cistus x aguilarii 'Maculatus'
An old classic sun rose of upright form, reaching about 1.5m or sometimes more. Big white flowers, with a ring of perfectly formed deep wine-red markings at the base of each petal, are seen in early summer. The evergreen foliage is handsome in itself, narrow with an undulating edge. A great plant for sunny well drained positions in unamended soil.
Citrus ichangensis (C. cavaleriei)
One of the hardiest of all Citrus, this distinctive foliage plant can survive on a warm wall in many parts of the UK and even free standing in mild areas. A small to medium sized shrub with tapered ovate-elliptic leaves with the extended winged petiole as broad as the leaf blade (like Kaffir lime leaves). White flowers are followed by lemon shaped fruit if grown on a warm wall.
The Yellowwood from the SE USA forms a very attractive tree here, with unusual alternately pinnate, bold foliage, turning to an excellent clear yellow in autumn. The long drooping panicles of white pea flowers in June remind one of Wisteria. Easy in most places, enjoying sun.
A very rarely offered or seen Chinese tree of small to medium size for a sunny position. Attractive pinnate leaves open late, and the tree is smothered in large panicles of pink-tinged white pea flowers in July, but not usually on very young specimens. Bark is smooth and grey, and the autumn colour is an exceptional, glowing, clear golden yellow.
Cladrastis wilsonii W 1102
Almost extinct in cultivation and possibly none too common in the wild, this was never offered for sale, until now. These are grafts of the last known tree in cultivation in the UK (now dead) at Wisley. Closely related to the beautiful C. sinensis, but with larger flowers in smaller panicles. Excellent yellow autumn colour on this small hardy tree for any ordinary soil.
An invaluable late flowering large shrub to small tree. New foliage emerging burgundy flushed. Very fragrant white flowers held in maroon calyces borne in Aug/Sept, followed by bright blue berries, still subtended by the persistent calyxes. A tolerant and hardy species for acid or alkaline soils.
Clethra barbinervis 'White Star'
A new form of a desirable hardy medium to large shrub from Japan and S Korea, flowering at a younger age, with attractive exfoliating grey and pink-brown bark recalling a crape myrtle, Lagerstroemia. Long racemes of deliciously scented white flowers are seen in July/August, followed by red and yellow autumn colour. Requires lime free soil.
A variable species, now including many closely related entities, but always very handsome. A large shrub with long, broad, horizontally held, many flowered racemes of highly scented pure white flowers in late summer. Seen at its best with at least some shelter. Usually perfectly hardy in most parts of the UK. For lime free soil
Clethra kaipoensis NJM 11.020
A relatively new introduction from 1850m altitude in Guizhou, China, where it was a deciduous upright large shrub or small tree to 4m with rough, fissured bark. The terminal, branched, narrow-conical inflorescences are seen in late summer and are composed of multiple white flowers giving a fine fragrance. For lime free soil.
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