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Oak Tree Koster in the GardenTags plant encyclopedia

Quercus robur 'fastigiata Koster' ; syn. Quercus robur 'Kosteri Fastigiata'

 

Oak Tree 'Koster'

Oak 'Koster' is a columnar shaped oak which becomes narrowly pyramidal with age. It is ideal for urban planting, especially when you have limited space. It is long-lived. Excellent choice for formal avenues, tall hedging or a garden focal point.

Contributed by @simplygarden

 
plant Features
  • Oak Tree Koster likes full sun to partial shade

    Full sun to partial shade

  • Oak Tree Koster likes occasional watering

    Occasional watering

  • Oak Tree Koster is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Oak Tree Koster likes moist and free draining

    Moist and free draining

 
plant information

Common name

Oak Tree 'Koster'

Latin name

Quercus robur 'fastigiata Koster' ; syn. Quercus robur 'Kosteri Fastigiata'

type

Tree

family

Fagaceae

ph

6.0 - 9.0 Acid - Neutral

  • Light

    Oak Tree Koster likes full sun to partial shade

    Full sun to partial shade

  • Frost

    Oak Tree Koster is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Oak Tree Koster likes moist and free draining

    Moist and free draining

  • Water

    Oak Tree Koster likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant

full grown dimensions

The size of a fully grown Oak Tree Koster is 8.00meters x 15.00meters 8.00 M 15.00 M

Quercus robur 'fastigiata Koster' ; syn. Quercus robur 'Kosteri Fastigiata'

Oak 'Koster' is a columnar shaped oak which becomes narrowly pyramidal with age. It is ideal for urban planting, especially when you have limited space. It is long-lived. Excellent choice for formal avenues, tall hedging or a garden focal point.


Planting Outdoors Autumn

From Early Autumn TO Early Autumn

Young plants up to 4 ft high need no support but protection from wildlife. Plant in an open aspect in full sun to ensure the tree develops evenly and upright. Plant in early to mid Autumn, or in Spring

 

Planting Outdoors Spring

From Early Spring TO Mid Spring

Young plants up to 4 ft high need no support but protection from wildlife. Plant in an open aspect in full sun to ensure the tree develops evenly and upright. Plant in early to mid Autumn, or in Spring

 

Propagation

From Mid Winter TO Early Spring

Soak acorns in water, and let them stand in the water for 24 hours. Cold stratify for 60 days , or until the radicle emerges. Sow 1-2" deep, tamp the soil, mulch the seed bed. They can also be propagated by sowing in mulched beds. This is prefered to artificial stratification.

 
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