Standard Tree Sizes
Sizing of Standard Trees
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. A standard tree isn't actually measured by its height. It is measured by the girth, in centimetres, of its trunk 1 metre above soil level (i.e. its waist measurement in centimetres). This size 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.
Standard trees are sized by their girth instead of their height to allow a mixed selection of specimen trees to look natural when planted. For example, an oak grows more slowly than a silver birch and so will be shorter for the same "waist measurement".
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|
|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. We cannot tell you how tall your trees will be before you order them.