The majority of the plants we sell are grown in pots ranging from 1 – 10 litres in size. The litre size relates to the volume of compost that the pot contains. For instance, a 1 litre size potted plant contains 1 litre of compost and the plants are generally quite small. They take up far less space on the nursery than a bigger pot, requiring less water, space and materials meaning that they are cheaper to produce and cheaper to buy. Bigger and bushier plants require a bigger pot and more space on the nursery. Generally speaking, the bigger the pot size, the more mature the plants within those pots are. Hedging plants in bigger pots will have been re-potted several times. They will have been pruned and clipped regularly and could be up to 2 or 3 years older than plants grown in smaller pots.