Ilex crenata (Japanese holly)
is a small-leaved, slow-growing, evergreen shrub, which is often used as a substitute for box. Despite being a species of holly, it is very similar to Buxus and can be planted as an evergreen hedge, a useful structural shrub and is suitable for trimming into topiary shapes. The rate of growth is about 10-20cm per year.
Ilex crenata
is easy to grow in any reasonable garden soil in sun or shade. It can be planted at any time when the ground when conditions allow.
Hardiness
rating H6 – Hardy in all of UK and norther Europe.
Cultivars
Dark Green
has dark green, evergreen leaves.
Stokes
is slower growing and more compact than Ilex crenata 'Dark Green'.
Golden Gem
has good golden foliage.
Green Hedge
is an excellent choice for a taller hedge, as it has much stronger growth.
Cultivation
Soil improvement
is recommended prior to planting. The aim is to create a warm, friable, free draining soil across the planting area, not just the planting pit. This will help the plants to establish a good root system within the existing soil structure.
Watering
will be required for the first couple of seasons until establishment is strong. Larger specimens will require additional care. It is not possible to say how much is required or how often, but we would suggest you refer to the RHS. https://www.rhs.org.uk/garden-jobs/watering . If you require specific advice do give us a call 07391 145299.
Mulching
is recommended to conserve moisture and maintain an even root temperature.
Feeding
is not always necessary. We would encourage the approach of annually feeding the soil through organic mulches so that the healthy soil sustains a healthy plant. Additional food will be required for containers. Top dressing the pot with fresh compost at the start of the growing season and then using a natural liquid fertiliser. Controlled release fertilisers could be used according to manufacturer’s instructions.
Light pruning
is required annually to maintain shape and form. Ideally completed in the spring or early summer. Feed/mulch after pruning.
Pests and diseases:
It is a tough reliable plant and has few problems with pests and diseases.