How to Grow Damson
Fruit Tree
Damsons are tough, productive relatives of plums, valued for richly flavoured cooking fruit, preserves and baking. Their small blue-black fruits are usually too sharp for casual eating but develop superb depth when cooked. They cope well with cooler parts of the UK and make attractive, manageable trees for gardens, hedges and allotments.
Planting & rootstocks
Damsons are often grown on St Julien A for a useful garden-sized tree, or Pixy where a more compact tree is needed; rootstock controls size. Plant bare-root trees between November and March when dormant and soil is workable. Position the graft union at least 10 cm above the soil, stake young trees and water deeply. Allow enough room for a bush form, or train one as a fan against a sheltered wall for easier picking.
Pollination
Several damsons are self-fertile, including 'Merryweather' and 'Farleigh', making them practical single trees. Even self-fertile types may set more heavily with a compatible plum or damson flowering nearby. Check the pollination group of less familiar cultivars before buying. A local garden centre or the RHS can help match blossom times for your area, particularly in colder gardens.
Care & pruning
Prune damsons in dry summer weather, never during winter, to limit the risk of silver leaf and bacterial canker. Remove dead, rubbing and inward-growing shoots, retaining an open, balanced crown. Mulch each spring with organic matter, leaving a gap around the trunk, and water young trees in dry periods. Feed modestly if growth is poor. Thin exceptionally heavy crops and support branches before fruit gains weight.
Years to bear
A Pixy-grown damson may produce a small crop after two to three years. Trees on St Julien A commonly begin bearing in three to five years, becoming steadily more productive as the framework develops.
Harvest
Damsons usually ripen from August to October. Pick when the fruits are deep blue-black, carry a natural bloom and yield slightly when pressed. They often release more easily after a cool night. Harvest dry fruit in stages, removing windfalls promptly. Their flavour is best after cooking, and they freeze well for later preserving.
Common problems
Damsons can suffer brown rot, aphids, plum moth, silver leaf and bacterial canker, though established trees are often resilient. Clear away fallen and mummified fruit, maintain airflow through summer pruning and avoid wounding branches in wet weather. Encourage insect-eating wildlife, net against birds where needed, and keep young trees watered and mulched so stress does not invite disease.
Growing Damson: frequently asked questions
How do I grow damson in the UK?
Damsons are often grown on St Julien A for a useful garden-sized tree, or Pixy where a more compact tree is needed; rootstock controls size.
Does damson need a pollination partner?
Several damsons are self-fertile, including 'Merryweather' and 'Farleigh', making them practical single trees.
When is damson ready to harvest?
Damsons usually ripen from August to October.
General guidance for UK home growers. Variety and pollination needs vary; the RHS or a local garden centre can advise for your area. Page updated 18 Sep 2026.