Plant Pot Size Guide

The majority of plants sold online by Jacksons Nurseries come potted in pots of various sizes. Most pot sizes are referred to by their volume capacity in litres, with the exception of pots that are smaller than 1 Litre which are usually refereed to by the diameter of the top of the pot.

The table below gives the approximate measurements of the common pot sizes we use at Jacksons Nurseries. Sizes are only a guide as the exact measurements vary depending on pot manufactures.


Pot Size Pot Diameter (Top) Pot Diameter (Base) Pot Height
9cm  9.0cm 3.5" 6.0cm 2.5" 8.5cm 3"
1 Litre 13.0cm 5" 10.0cm 4" 11.0cm 4"
2 Litre 17.0cm 6.5" 12cm 4.5" 13.0cm 5"
3 Litre 19.0cm 7.5" 13cm 5" 15.0cm 6"
4 Litre 20.0cm 8" 15.5cm 6" 16.5cm 6.5"
5 Litre 22.5cm 9" 16.5cm 6.5" 18.0cm 7"
7 Litre 25.0cm 10" 19.0cm 7.5" 20.0cm 8"
10 Litre 28.0cm 11" 24.0cm 9.5" 22.5cm 9"
15 Litre 33.0cm 13" 25.5cm 10" 30.0cm 12"
20 Litre 35.5cm 14" 27.5cm 11" 32.5cm 13"
25 Litre 38.5 cm 15" 30.0cm 12" 35.0cm 14"
30 Litre 41.0cm 16" 33.0cm 13" 36.0cm 14"
40 Litre 50.0cm 20" 35.5cm 14" 45.0cm 18"


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Spot on, thanks guys
This is really good information, have always wondered what size the various pots were
it is fantastic now I know exact how much soil I need.
Do you have Euphoria amygdaloides var Robbie wood spurg in stock
This is so useful. So often growers suggest volumes and not pot sizes. Thank you so much.
Why can’t nurseries just say how tall a tree is instead of using a litre pot I don’t so much care about the litre under ground it’s so silly a conifer in a one litre pot is how tall as opposed to one in a 3 litre pot?! So irritating
Hi I am looking to buy 2 Japanese trees in pots I don’t want big ones what do you recommend . It is for back garden which gets no sun in morning but sun in afternoon xxx
@ Pasquale - we supply Golden Alder trees (Latin name Alnus incana 'Aurea') in 10-15 litre pots. These are quite mature trees with a 120-150cm stem, priced at £34.99. We also sell bare root common Alder as young trees between November and March. Please type "Alder" into the search bar at the top of our website for more details of the options available and feel free to call us on 01782 502741 if we could be of any further assistance.
How tall is an Evergreen Alder 8″ Pot and how much would cost?
what size is the plant when it is sold by the size of the pot, i.e., 1 x 3.5 litre potted XXX plant

Hi Jean, the size varies from plant to plant and the season so it's best to enquire on a particular plant(s) when you want to make a purchase.
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