English oak 'Fastigiata Koster' (Quercus robur 'Fastigiata Koster')

English oak 'Fastigiata Koster'

Also known as: Pedunculate oak 'Fastigiata Koster'

English oak 'Fastigiata Koster' is a majestic, columnar oak with a narrow, upright growth habit, which distinguishes it from its wider, more sprawling relatives. Its deep green, lobed leaves turn to a rich bronze in autumn, before shedding. Hardy and robust, english oak 'Fastigiata Koster' thrives in a variety of soils, its towering presence a testament to its resilience against diverse environmental challenges.

Scientific classification

Beeches, walnuts, and allied trees

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Perennial

Lifespan

Tree

Plant Type

Winter dormancy

Dormancy

Deciduous

Leaf type

Care Guide for English oak 'Fastigiata Koster'

Twice per week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: English oak 'Fastigiata Koster' thrives in temperate climates, requiring consistent moisture. It is moderately drought-tolerant but best with maintained soil humidity, ideally watered twice a week. As an outdoor tree, it benefits from natural rainfall, especially during its active growing season when demand increases.

Fertilize: English oak 'Fastigiata Koster' thrives without added fertilizer, but a 12-6-6 (N-P-K) option can boost nutrients. Mimicking their natural habitat, applying mulch enhances organic matter and provides beneficial nutrition, similar to forest litter found in their native environments.

Pruning: English oak 'Fastigiata Koster' is a columnar tree suitable for confined areas. Prune in early spring to remove any dead or diseased branches, supporting air circulation while preserving its shape. Light pruning is beneficial; ensure sterilized tools are used to avoid disease transmission.

Propagation: English oak 'Fastigiata Koster' features an upright, columnar growth habit. For propagation, take softwood cuttings during active growth with a sterile tool. Using rooting hormone aids root development. Maintain consistent moisture and warmth in a well-draining medium for successful rooting.

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