Gaulteria procumbens evergreen, ground cover plant. The thick glossy foliage is strong and bold. White, urn shaped flowers appear mid to late summer followed by chunky red berries in autumn

Ginkgo biloba MAIDENHAIR TREE native of China this deciduous conifer is the sole survivor of a family of plants which dominated tree life 200 million years ago. This ancient ancestry is reflected in the thick leathery leaves which have a fan shaped system of veins, which evolved before the pinnate branching system of veins seen in most trees and shrubs. The leaves turn a bright golden colour in autumn. It is extremely hardy,thrives on both acid and alkaline soils and is tolerant of air pollution. Slow growing, narrow. Height at maturity 25m (75ft). AGM.

Grisellinia littoralis Variegata an upright evergreen shrub with leathery, bright green ovate leaves to 10cm in length, irregularly margined with creamy-white. Grows to 4ft * 4ft.

Halesia carolina SNOWDROP TREE from Carolina USA. This small deciduous tree has a spreading crown with foliage turning yellow in autumn. Flowers profusely with clusters of white or pinkish bells, which form 4 winged fruit in autumn. Plant in well drained slightly acidic soil. Plant in full sun or part shade. Protect from strong winds. Height and spread at maturity 40ft by 25 ft.

X Halmiocistus - Merrist Wood Cream clump-forming, small evergreen shrub with dark-green leaves which are grey beneath, and white flowers with a deep-red blotch at base of each petal around a yellow centre. Flowers in summer.

X Halmiocistus - Sahuchii a dense, low-growing dwarf evergreen shrub with narrow, dark green leaves and pure white flowers 2.5cm in width, with yellow stamens

Hamamellis mollis CHINESE WITH HAZEL native of China these deciduous woodland shrubs prefer moist cool soils with dappled shade and are grown for their clusters of golden yellow petals in late winter or early spring before the leaves emerge. Good autumn colour. Grows to 15ft * 15ft.

Hamamellis vernalis - Sandra OZARK WITCH HAZEL as with other Hazels these deciduous shrubs are grown for their yellow winter flowers, whilst this cultivar has large leaves which colour a spectacular red and purple in autumn. Grows to approximately 15ft.

Hamamellis x intermedia - Arnold Promise  a large shrub with green foliage turning yellow in autumn with dense clusters of dark yellow strap like petalled flowers in winter. 12ft * 12ft. Prefers a shaded woodland environment with  moist soil. - Diane red flowers with good autumn colour.

Hebe - Galway Bay a medium sized compact evergreen plant with deep olive green foliage that smoothers itself in mauve flowers through the spring. Grows to approx 3ft * 3ft

Hebe - Sutherlandii a neat, compact, rounded, evergreen shrub. It has small grey-green, oval leaves and in late spring to early summer, is covered with spikes of small white flowers. Grows to about 1.5ft * 1.5ft.

Hydrangea arborescens radiata SMOOTH HYDRANGEA native of North America this deciduous open shrub  has flat creamy white flower heads in summer. Good autumn colour. Prefers moist shaded site. Height and spread 8ft * 8ft.

Hydrangea paniculata - Levana Strong upright stems topped by large white conical flowers up to 50cm long if cut back in spring. Vigorous plant 2m-5m depending on pruning. - Pink Diamond open shrub which bears large panicles of creamy white flowers in summer, which mature to a deep pink colour in autumn. The flowers eventually fade to a pinky-brown but can be retained over winter to extend the period of interest.

Hydrangea petiolaris climbing Hydrangea thrives in some of the most shady, inhospitable areas of the garden. Slow to establish, it will eventually romp along a wall or fence, clinging by aerial roots. Its almost heart-shaped, dark green leaves turn yellow in autumn, and masses of showy, lacy, white flowerheads appear in late spring and early summer.

Hydrangea quercifolia OAK LEAFED HYDRANGEA this deciduous shrub from southern USA has large lobed green leaves turning crimson in autumn, whilst white panicles of flowers form in summer, turning pinkish hues in autumn. Plant in full sun or part shade. Height and spread at maturity 8ft * 8ft.

Hypericum - Autumn Blaze Yellow flowers followed by pink to purplish-red to black fruit on a vigorous, spreading, bushy deciduous shrub. Blooms August-September. Dark blue-green leaves, among the largest of the hardy Hypericums, turn yellow-green, orange and red in autumn.