It enjoys being near water and its tolerance of salty climates makes it ideal for hedges in coastal towns. It can grow up to 6m in height although it takes about 20 years to do so! The Broad Leaf variety has apple green coloured oval shaped leaves, and there is a variegata variety that has green leaves with a white border. A Griselinia Hedge produces bitter tasting purple berries in the Autumn. These enable the plant to self-seed. A Griselinia Hedge can be pruned in the summer months — July to September in the UK — and depending on your topiary tastes, you can use hand or machine shears to achieve your goals.
Feed broadleaf every week during the spring and summer, using a general-purpose water-soluble fertilizer applied according to the label's recommendations. Decrease to every other week during the fall and winter. Alternatively, use a slow-release fertilizer according to the manufacturer's recommendations. Prune the shrub, if needed, in mid to late spring.
As a general rule, broadleaf requires very little pruning but may benefit from shaping by trimming individual stems rather than drastic shearing. The oval leaves are leathery glossy and lush bright green. This plant produces small cream insignificant flowers and is primarily grown from its dense foliage. Plants left to get large have rough dark trunks. In the autumn the female trees have small purple-black fruit. Grows in a range of soil types but prefers well drained soil in full sun. Can tolerate frost and wind.
Always choose healthy, well-grown plants. Plant after autumn rains when the soil is moist and warm, allowing trees and shrubs to become established before winter. Planting success is often improved on clay soils by adding extra topsoil and forming raised beds. Incorporate coarse sand, bark and compost to improve soil structure. Before planting, ensure that the root ball is saturated and remove planter pot with minimal root disturbance.
Trim any broken roots or branches and plant at the same level as in the container. Long term, slow-release fertilisers may be added at this stage. As soil is placed in the prepared hole, tread firmly to bring soil in close contact with the root ball. Beech: Very popular in country gardens where evergreen privacy is less important and a more natural look is required.
Can be trimmed once in late July early August. Hornbeam: Also a country hedge and often used instead of beech where the ground is Wetter. Can be treated the same a beech hedge.
Cherry laurel: Makes a big wide hedge and is still often planted and can be left as an informal screen in country gardens where space allows. Otherwise it is best pruned in late May and again in August.
Portuguese laurel: Taking over from the cherry laurel these days particularly in town garden where it is useful because it requires less space and provides a very dark green leaf which is popular. Prune the same as with the Cherry laurel.
To keep this hedge really sharp clip two or three times a year from May to September as the new growth determines. Yew: The king of hedges but is notoriously slow so has lost favour in the instant world we live in. Vital to keep this hedge absolutely sharp and formal looking to get the best from it.
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