The table below gives the approximate measurements of the common pot sizes we use at Jacksons Nurseries. Our selection of plastic plant pots is vast, covering a large choice of round and square pots in an array of sizes to suite your growing needs.

Plant Pot Size Guide - Jacksons Nurseries Plant Pot Size Guide - Jacksons Nurseries

So, always look out for the pot size the plant has been grown in – its critical best value for your garden and budget.Clearly, a plant in a 2 litre pot has twice the root system of one that initially may look slightly cheaper in a 1 litre pot but often offers worse value for money. Some offer plants in P9 pots which are plants often less than 1 year old, many varieties of which can be more difficult to establish straight out in the garden. Some suppliers avoid ensuring pot size is clear at the point of purchase so their plants look inexpensive but in the long run, they can result in slower development and increased losses. Each pot is described by the diameter/width of the pot at the top with further measurements and volume found within the description of the item.

10 Inch Plant Pot - Etsy UK

Most pot sizes are referred to by their volume capacity in litres, with the exception of pots that are smaller than 1 litre which is usually referred to by the diameter or cross section of the top of the pot (P9 is approximately a 9 x 9 cm pot). All afternoon I've been looking for somewhere that tells me what size, as in diameter, a 10 litre pot is.