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Koster Oak (Quercus robur Fastigiata)
An upright form of the oak, reaching heights of 20m but only around 3m wide. Dark green deeply lobed leaves turning golden brown in the autumn, which will stay on the tree well into winter in a sheltered position. Acorns are produced late summer and make a nice addition for the wildlife in the autumn.
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Koster Oak (Quercus robur Fastigiata) is a striking deciduous tree renowned for its distinctive upright growth habit and dense, columnar form. This cultivar of the English oak features lush green leaves that turn a beautiful golden-yellow in autumn, providing year-round interest. Thriving in well-drained soil and full sun, the Koster Oak is an excellent choice for urban gardens, parks, and larger landscapes in the UK. Its strong structure and adaptability make it suitable for a variety of planting schemes, while its acorns provide food for wildlife, enhancing biodiversity in your outdoor space.
| When to Plant | All Seasons |
|---|---|
| Flowering/Fruiting Time | Spring |
| Suitable For | Beds, Urban Gardens, Woodland |
| Maintenance | Low |
| Sunlight | Full Sun |
| Hardiness | Hardy |
| Soil Type | Most Soils, Not Waterlogged Land |
| Supplied Height/Size | 5-6 feet, Sold in 5 litre pot |
| Established Height | 20m height x 3m spread in 25 years |
| Life Cycle | Woody Perennial |
