Standard Tree Sizes

Sizing of Standard Trees standard tree

When you buy a tree in a larger size, over about 2 metres, it is called a "standard". All the plants in our Ornamental Trees section are graded as standards. These are measured by the girth (waist measurement), not length, in centimetres, of its trunk 1 metre above soil level. This measurement has nothing to do with a tree's final height, only the size of the tree when we deliver it to you.

Most standards are between 2 - 3.5 metres tall, but this will vary depending on the species: slow growing trees may be shorter and vigorous plants like willow can be much taller.

The table below is a rough guide to the approximate heights of standard trees at delivery.

You can buy these standard sizes from us:

  • 6/8 cms - Light standards.
  • 8/10 cms - Regular standards.
Tree Size Girth 1 metre above the ground Approx. Height Clear Trunk*
Feathered Tree less than 6cm 1.75-2.50m  
Light Standard 6-8cm 2.50-3.00m 1.50-1.75m
Regular Standard 8-10cm 2.50-3.00m 1.75-2.00m
Selected Standard 10-12cm 3.00-3.50m 2.00m
Heavy Standard 12-14cm 3.00-3.50m 2.00m
Extra Heavy Standard 14-16cm 4.25-4.50m 2.00m

*Applies to most species.

The above specimen tree heights are only a guide. In line with EU regulations, we sell our trees as standards measured by girth, not by height, and we cannot tell you how tall your trees will be before you order them.

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Thank you, The Ashridge Nurseries Team.

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