Quercus Robur Fastigata Koster 6-8cm Girth

Quercus robur ‘Fastigiata Koster’ – Columnar English Oak

Quercus robur ‘Fastigiata Koster’ is a refined, upright form of the native English Oak, valued for its narrow, columnar shape and strong seasonal presence. With dense green foliage, golden autumn tones, and excellent wildlife value, it’s ideal for gardens, avenues, and landscapes where space is limited but a classic oak look is desired.

Seasonal Highlights

• Spring: Fresh green lobed leaves emerge with catkins, supporting pollinators.

• Summer: Dense, upright canopy of dark green foliage provides shade and structure.

• Autumn: Leaves turn warm golden-brown before falling, while acorns provide food for wildlife.

• Winter: Narrow columnar framework adds structure and silhouette.

Key Features

• Columnar habit – Tall, narrow form with minimal spread, unlike traditional broad oaks.

• Classic oak features – Lobed leaves, textured bark, and acorns.

• Seasonal interest – Fresh green spring growth, golden autumn colour.

• Wildlife-friendly – Supports a huge range of insects, birds, and mammals.

• Hardy and adaptable – Performs well in UK soils and climates.

Perfect For

• Avenues and driveways – Elegant when planted in rows for rhythm and structure.

• Smaller gardens – Narrow habit fits well into tighter spaces.

• Formal landscapes – Adds vertical impact and strong architectural lines.

• Wildlife planting – Provides food and habitat in compact form.

Growing Tips

• Sun/Position: Best in full sun with plenty of overhead space.

• Soil: Prefers moist, fertile, well-drained soils; tolerates clay, loam, and sand.

• Hardiness: Fully hardy across the UK.

• Care: Minimal pruning required; best done in late summer to prevent bleeding. Protect young trunks from deer and rabbits.

Looks Great With

• Other fastigiate trees – Carpinus betulus ‘Frans Fontaine’ or Fagus sylvatica ‘Dawyck’ for contrast.

• Formal hedges – Box, Yew, or Hornbeam beneath to emphasise structure.

• Autumn stars – Plant with Acers, Liquidambar, or Nyssa for a fiery autumn display.

• Spring bulbs – Naturalise Daffodils or Bluebells at the base for layered planting.

Quercus robur ‘Fastigiata Koster’ is a superb narrow oak, combining the timeless appeal of English Oak with an elegant, space-saving columnar form. Hardy, long-lived, and wildlife-friendly, it’s perfect for avenues, formal schemes, and compact gardens.