Sizes

Many clients who visit our well-maintained nursery in Potton, Bedfordshire, will instantly get a feel for the different sizes on offer and it helps to envisage how your garden or landscape will look.

Sizes can be rather deceptive, so it’s important to have some measurements to hand if you don’t want to underestimate or overestimate the size tree you need for your project. You can learn more about how our trees are priced and sold below, but if you’re unsure on the height, girth or weight you require, our friendly team are always on hand to offer guidance and advice.

Girth / Circumference

Standard trees are priced and sold according to their girth. The girth is the circumference of the stem measured one metre from ground level. Girth is a much better gauge of maturity than height, which can vary enormously between species.

Note: Only applies to standard trees.
Feathered and Multistem are measured in height (metres).

Girth	Type
08-10cm	Standard
10-12cm	Selected Standard
12-14cm	Heavy
14-16cm	Extra Heavy
16-18cm	Extra Heavy
18-20cm	Extra Heavy
20-25cm	Semi Mature
25-30cm	Semi Mature
30+ cm	Semi Mature

Weights

Nearly all of our trees are prepared and loaded with mechanical lifting tools, but a few of the trees we supply are suitable to be planted “by hand”. The weights given are approximate and may vary according to the tree variety, soil type and moisture content on your delivery date.

Tree Sizes Girth/cm	Rootball Sizes Diameter x Depth WRB /cm	Weights Kg	Container Sizes Diameter x Depth CG /cm	Weights Kg
14-16	50x50cm	100	60x50cm	100
16-18	50x50cm	150	60x50cm	175
18-20	60x60cm	200	70x60cm	250
20-25	70x60cm	250	80x60cm	350
25-30	80x60cm	350	90x60cm	500
30-35	90x60cm	500	100x60cm	650
35-40	100x70cm	650	110x70cm	850
40-45	120x70cm	850	135x70cm	1100
45-50	130x70cm	1100	145x70cm	1600
50-60	140x70cm	1600	160x80cm	2500
60-70	160x80cm	2500	180x80cm	4000
70-80	180x80cm	4000	200x80cm	5500
80-90	200x100cm	5500	225x100cm	7500
90-100	225x100cm	7500	250x100cm	9000
100-120	250x100cm	9500	275x100cm	10000

Heights

The correlation between the girth and height of a deciduous tree varies greatly between varieties and even between different batches of the same variety. The table gives you an idea of the average height of a typical tree in each available girth.

Tree Sizes Girth/cm	Height (metre)
14-16	3.0-4.0m
16-18	4.0-4.5m
18-20	4.0-5.0m
20-25	4.5-5.5m
25-30	5.0-6.0m
30-35	5.5-6.5m
35-40	6.0-7.0m
40-45	6.5-7.5m
45-50	7.0-8.0m
50-60	7.0-9.0m
60-70	7.0-10.0m+

Example of Quercus palustris in different girth sizes

Standard trees are available from 12/14 cm to 90/100 cm girth. Our example photographs below show Quercus palustris in different sizes.