Plants: 131
Latin name | Common name | Type | Description | Cultivation | Hedging |
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Helichrysum rosmarinifolium | shrub | See Ozothamnus rosmarinifolius. | ![]() |
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Hibiscus rosa-sinensis | shrub | 8ft (2.5m). Evergreen. Oval, toothed leaves. Large, crimson flowers. | Frost tender, 0°C. Sun. | ![]() |
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Hippophäe rhamnoides | Sea Buckthorn | shrub | 20ft (6m). Deciduous. Spines. Narrow, greyish leaves. Insignificant, yellow flowers in April. Bright orange fruit in autumn. | Fully hardy. Sun, thrives in sandy soil. Male and female plants required for fruit. Ideal for hedging. | ![]() |
Hydrangea macrphylla | shrub | 5ft (1.5m). Deciduous. Oval, serrated leaves. Many varieties. Flower In pH below 5.5, pink or red flowers. In pH above 5.5, blue or purple flowers. White not affected by pH. Poisonous. | Frost hardy, -5°C. Sun or partial shade. Remove dead flower heads. | ![]() |
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HYPERICUM genus | perennial, sub-shrub, shrub | 2ins-5ft (5cm-1.5m). Deciduous or evergreen. Oval leaves. Bright yellow, cup-shaped flowers in summer and autumn. | Half-hardy, 0°C to fully hardy. Sun or partial shade. | ![]() |
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Iberis sempervirens | Candytuft | shrub, rock plant | 8in (20cm). Evergreen. Narrow, dark green leaves. Rounded heads of white flowers in May and June. Fs | Fully hardy. Sun, thriving on poor soils. | ![]() |
ILEX genus | Holly | shrub, tree | c. 5-70ft (1.5-20m). Evergreen. Dark, glossy leaves with wavey, usually spined edges. Red or yellow berries. Poisonous. | Half-hardy, 0°C, to fully hardy. Single-sexed, so both sexes required for berries. Sun or shade. | ![]() |
Juniper communis "Compressa" | shrub | 32ins (80cm). Evergreen. Dwarf form. Aromatic, blue-green foliage. Berries ripen from green to blueish, then black. | Fully hardy. Sun or partial shade, well-drained soil. | ![]() |
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Juniper communis "Hibernica" | Irish Juniper | shrub | 15ft (5m). Evergreen. Columnar. Greyish blue foliage. | ![]() |
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Juniper communis "Stricta" | shrub | See Juniper communis "Hibernica". | ![]() |
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Juniperus communis | Common Juniper | shrub | 25ft (8m). Glossy green or yellowish needles. Aromatic. Small, green berries turn blueish then black. Varieties include "Compressa", dwarf 30in (75cm) with glaucous leaves; "Hibernica", narrow column, 15ft (5m). | Fully hardy. Sun or partial shade, well-drained soil. | ![]() |
Lavandula "Hidcote" | Lavender | shrub | 2ft (60cm). Evergreen. Narrow, aromatic, greyish leaves.Spikes of deep purple flowers from June, July. | Fully hardy. Sun. Useful as a low hedge. | ![]() |
Lavandula angustifolia "Hidcote" | shrub | See Lavandula "Hidcote". | ![]() |
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Lavatera "Rosea" | shrub | 10ft (3m). Semi-evergreen. Lobed leaves and large, deep pink flowers in summer. | Frost hardy, -5°C. | ![]() |
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Leptospermum scoparium | Manuka, Tea Tree | shrub | 10ft (3m). Evergreen. Narrow, dark green leaves. Double, red flowers from May to August. | Frost hardy, -5°C. Needs south- or west-facing wall in cold regions. | ![]() |
Leycesteria formosa | Himalayan Honeysuckle | shrub | 6ft (2m). Deciduous. Oval, dark green leaves. Funnel-shaped, white flowers with red bracts from July to September. Purple-blackish fruits. | Frost hardy, -5°C.Sun or partial shade. | ![]() |
LIGUSTRUM genus | Privet | shrub, tree | c. 10-30ft (3-10m). Deciduous or evergreen. Oval, glossy leaves. Tubular flowers in loose clusters, white or cream, in summer. Black, rounded fruits. Poisonous. | Frost hardy, °C, to fully hardy. Sune or partial shade. | ![]() |
LIMONIUM genus | Sea Lavender | annual, perennial, sub-shrub | c.6ins-3ft(15cm-1m). Oval or narrow leaves, sometimes lobed or in basal rosette. Some are evergreen. Tubular flowers, generally blue, in summer or early autumn. | Frost tender, 10°C, or fully hardy. Sun and well-drained soil. | ![]() |
LINUM genus | annual, biennial, perennial, sub-shrub, shrub | c. 2-24ins (5-60cm). Some are evergreen.Leaves are generally oval, greyish-green. Flowers are funnel- or cup-shaped flowerse in summer and autumn. Colours include white, yellow, red, or blue. | Half hardy, 0°C, to fully hardy. Sun, and shelter in cold areas. | ![]() |
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LOBELIA genus | annual, perennial, shrub | c. 4in - 6ft (10cm-2m). Some are evergreen. Narrow, sometimes reddish, leaves. Flowers are two-lipped, in summer. Colours include red, blue or purple. Some are irritants. | Frost tender, 5°C, or fully hardy. Sun, in summer needs moist soil. | ![]() |
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Lonicera pileata | shrub | 5ft (1.5m). Evergreen. Spreading shrub with narrow dark leaves. Pale yellow flowers in May, then purplish berries.Poisonous. | Fully hardy. Useful for ground cover. | ![]() |
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Lycium barbarum | Duke of Argyll's Tea Tree, chinese Box Thorn | shrub | 8ft (2.5)m. Deciduous. Spiny. Narrow, greyish leaves. Funnel-shaped pink or purple flowers, then orange-red berries. | Fully hardy. Sun. Thrives in poor, dry soil. Useful for hedging. | ![]() |
Malvaviscus arboreus | Sleepy Mallow | shrub | 20ft (6m). Evergreen. Downy, bright green leaves. Red flowers in summer and autumn. | Frost tender, 16°C. Sun and fertile soil. | ![]() |
MATTHIOLA genus | Stock | annual, biennial, perennial, sub-shrub | c.12ins-2ft (30-60cm). Narrow, greyish-green leaves. Spikes of 4-petalled, fragrant flowers, in summer. Colours include white, yellow, pink, red or purple. | Frost tender, 4°C, to fully hardy. Sun and preferably in limed soil. | ![]() |
Nerium oleander | Oleander | shrub | 20ft (6m). Evergreen. Dark, leathery leaves. . Clusters of open flowers in shades of white, pink, red, yellow, in spring and summer. Poisonous. | Frost tender, 10°C.Sun. Likes a south-facing wall. | ![]() |
Plants: 131