Quercus ilex
Holm oak, Evergreen oak, Holly leaved oak
- Height × spread
- 25m × 20m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Spring
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This handsome, evergreen tree has dark, blackish-green leaves. It is much the same all year, except that, in spring, the new foliage is silvery grey and then, briefly, the whole tree becomes a rich golden-brown for a few days in May with golden male catkins. The leaf shape varies rather, though predominantly oval, and sometimes toothed. It makes an imposing bell-shaped specimen of sombre, dignified mien. It has many practical uses, from the provision of acorns for pigs to making charcoal. The bark is especially rich in tannin. It is also a tree that can used in formal gardens, clipped to a formal round shape, or used as a hedge. Massive specimens of this and other big oaks, are to be seen in the Royal Botanic Gardens, Kew.
- Flower colour
- Yellow
- Foliage colour
- Green
- Spring foliage
- Silver-grey
- Stem colour
- Black, Brown
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 25m
- Spread
- 20m
- Height in 10 years
- 7m
- Spread in 10 years
- 5m
- Season of interest
- Spring
- Flowers in
- Spring
- Evergreen
- Evergreen
- Garden style
- Seaside garden, Mediterranean garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- All types
- Soil pH
- All types
- Drainage
- Well drained soil, Drought resistant
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Hedge, Architectural, Bird attraction
- Maintenance
- Easycare – low/no maintenance
- Hazards
- No
Spring
Spring - late · Outdoors
Feed young plants with slow release fertiliser
Spread a slow release fertiliser around the base of the plant to the edge of the foliage spread, so that it can feed the roots. It is helpful for this to be applied for several years.
This is a simple way to provide a nutrient boost until the plant becomes well established.
Spring-Autumn · Outdoors
Water during dry periods
For plants in the ground, when there has been little or no rain for a period of 7-10 days and the soil is dry, give it a deep watering and repeat weekly until there is a downpour of rain. Check plants in pots more frequently, especially in hot weather.
Planting & general
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.
Hedges · Planting
Suitable for dense hedges
This plant makes a dense hedge. Check the plant's spread at ten years to work out the required planting distance.
Hedges · Planting
Suitable for coastal areas
A good hedge for coastal situations.
Planting
Protect & support young trees
Attach a newly planted tree or tall shrub over 1m to a tree stake to give support and prevent windrock. Use a tree guard to stop tree bark being eaten by animals, especially in areas with deer - removing bark injures a tree and in worst case can kill it.
Found in
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