How to Grow Damson Plum 'Bradley's King'

Wikimedia Commons

Damson Plum 'Bradley's King'

Prunus domestica subsp. insititia 'Bradley's King'

tree

Bradley's King is a damson plum cultivar known for its small, dark purple fruits with distinctive tart flavor ideal for preserves and cooking. This hardy, self-fertile variety produces abundant crops and is particularly valued in UK orchards for jam and jelly production. The tree grows to moderate height with a spreading habit and attractive white spring blossoms.

When should you plant Damson Plum 'Bradley's King' in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Damson Plum 'Bradley's King' timeline →

Example Damson Plum 'Bradley's King' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Damson Plum 'Bradley's King'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Damson Plum 'Bradley's King'

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Damson Plum 'Bradley's King' dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily for optimal fruiting
💧
Water: Moderate water needs; keep soil consistently moist during growing season and fruit development. Reduce watering in winter. Susceptible to cracking in fruit if given inconsistent water, so maintain even moisture.
📏
Spacing: 240 inches
📅
Days to maturity: 1440
🌱
Planting depth: Plant bare-root trees at same depth as nursery pot; graft union should be 2 inches above soil surface

Soil

Type: Well-draining loamy soil with good fertility
pH: 6.0-7.0
Amendments:
organic compost aged manure balanced fertilizer in spring

Growing Zones

Find your zone →

Thrives in zones 6-8; can survive zone 5b with winter protection

5b 6a 6b 7a 7b 8a 8b

Sign up free to see if Damson Plum 'Bradley's King' grows in your zone — and get a personalized planting timeline.

Get my Damson Plum 'Bradley's King' timeline →

Growth Stages

1

Establishment

1-2 years

Young tree focuses on root development and branch framework; minimal fruiting in first 1-2 years

Stake tree for support. Prune to develop strong central leader or open-center vase shape. Water regularly. Apply mulch around base, keeping 6 inches clear of trunk.

2

Flowering

2-3 weeks

White flowers appear on spurs in early spring (March-April in UK) before leaves fully emerge

Self-fertile variety, but cross-pollination improves yields. Protect flowers from late frost with frost cloth if needed. Do not prune during flowering.

3

Fruit Development

6-8 weeks

Small green fruits develop from flowers, gradually expanding to marble-sized plums

Thin fruits to 2-3 inches apart in late May/June to allow larger individual fruits and reduce biennial bearing. Maintain consistent moisture to prevent fruit crack.

4

Ripening & Harvest

3-4 weeks

Fruits darken from green to deep purple-black, reaching full color by late August to September

Fruits maintain good acidity even when fully ripe. Can harvest slightly early for cooking, or leave on tree for maximum sweetness. Protect from wasps and birds with netting if desired.

5

Dormancy

4-5 months

Tree loses leaves in autumn; enters winter rest period with buds set for next spring

Prune in late winter (January-February) to remove crossing branches, dead wood, and open up canopy. Thin crowded branches to improve air circulation and reduce disease.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

brassicas potatoes

Common Pests

  • Pheromone traps in spring; prune out infested young fruits; encourage natural predators with hedgerows

  • Pheromone disruption traps; remove fallen fruit promptly; band tree trunk in early summer to trap larvae

  • Remove mummified fruits and twigs; improve air circulation by pruning; avoid overhead watering; apply sulfur or copper fungicide in spring if history of infection

  • Prune only in dry weather (May-August); sterilize tools between cuts; remove infected branches immediately; paint large wounds with wound sealant

  • and

    Use fruit netting in late summer; remove damaged/fermenting fruits promptly to reduce wasp attraction

Uses

🍳

Preserves & Jams

Culinary

Bradley's King damsons are classic for making damson jam, jelly, and cheese due to their high pectin content and distinctive tart flavor. The small fruits require less preparation than larger plum varieties. [source]

🍳

Cooking & Baking

Culinary

Use in pies, crumbles, tarts, and stewed fruits where tartness is desired. Can be made into damson gin, a traditional British preserve. [source]

💊

Digestive Aid

Medicinal

Damson plums have traditional use as a gentle laxative due to their fiber and sorbitol content. Often taken as cooked fruit or preserved form. [source]

🏠

Dye Production

Household

Damson fruit and leaves have historically been used to create purple and blue dyes for textiles, producing rich natural colors. [source]

🦋

Pollinator & Wildlife Support

Wildlife

Spring blossoms attract honeybees and native pollinators; autumn fruits feed birds and small mammals, supporting local ecosystems. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Damsons ripen from late August through September (UK). Pick fruits when fully dark purple for best flavor and cooking properties. Harvest by hand for preserves, or allow fruits to fall naturally (place netting below tree) for easier collection. Fruits store 1-2 weeks in cool conditions; can be frozen for longer storage. Damson's high pectin content makes them ideal for jam without additional pectin.

Fun Facts

  • 🌱 Bradley's King is named after the enthusiast who selected this superior clone, and it's particularly celebrated in West country UK orchards where damson growing is a heritage tradition.
  • 🌱 Damson plums have been cultivated since Roman times, with evidence suggesting they originated in Damascus (hence 'damson'), and were brought to Britain by the Normans.
  • 🌱 Damson fruit is so acidic that it can be left on the tree well into autumn without spoiling, sometimes harvested after the first frost when sugar content peaks.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Damson Plum 'Bradley's King' planting timeline

Tell us your zip code and we'll calculate exactly when to start Damson Plum 'Bradley's King' seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Damson Plum 'Bradley's King' timeline →