Plants in pots need potting up every year or two to allow more space for their roots to develop and to replace tired compost. But getting the right sized pot is important for success and when the pot is too large problems with overpotting can arise.
Timing When repotting (usually spring)
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.