Plum
A classic deciduous NZ backyard fruit tree, planted bare-root in winter and bearing its first proper crop 3-4 years on. Almost no plum variety is reliably self-fertile (Santa Rosa is the well-known exception), so plan for a second, compatible tree of the same type (European or Japanese plums don't cross-pollinate each other) if you want good fruit set. Brown rot, which turns ripening fruit to mush in wet weather, is the main disease to watch for.
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- Sun
- full sun
- Water
- moderate
- Spacing
- 400cm
- Harvest
- Ready in about 3-4 years
- Difficulty
- intermediate
- Grows in
- Whangārei / Northland, Auckland, Hamilton / Waikato, Tauranga / Bay of Plenty, Gisborne, Napier / Hawke's Bay, New Plymouth / Taranaki, Palmerston North / Manawatū-Whanganui, Wellington, Nelson, Tasman, Blenheim / Marlborough, West Coast, Christchurch / Canterbury, Dunedin / Otago, Invercargill / Southland
- Expected yield
- 15-30kg of fruit per mature tree per season
- Cost to grow
- ~$30 NZD
- Grocery value
- ~$180 NZD
- Mature height
- 5m
- Flowering season
- Aug, Sep
- Attracts wildlife
- Bees
- Evergreen
- No, deciduous
- Common diseases
- Brown rot, Silver leaf, Bacterial blast
- Common pests
- Aphids, Leafroller caterpillars, Guava moth (northern regions)
When to plant by region
In Whangārei / Northland, Auckland, Hamilton / Waikato, Tauranga / Bay of Plenty, Gisborne, Napier / Hawke's Bay, New Plymouth / Taranaki, Palmerston North / Manawatū-Whanganui, Wellington, Nelson and Tasman: June-August. In Blenheim / Marlborough, West Coast, Christchurch / Canterbury, Dunedin / Otago and Invercargill / Southland: June-July.
Growing stages
Planting & establishmentBare-root, winter (June-August)
- Plant bare-root while dormant in winter
- Almost no variety is reliably self-fertile (Santa Rosa is the exception), so plan for a second, compatible tree of the same type
- Water while roots establish; this is a moderate-water tree once settled in
Early growthFirst 1-2 years
- Check for aphids and leafroller caterpillars on new growth
- Guava moth is a growing risk in northern regions
- Normal winter leaf drop as a deciduous tree; bare branches over winter aren't a sign of poor health
Flowering & fruitingAugust-September (varies by region)
- Bees pollinate the blossom; avoid spraying during flowering
- Bacterial blast can damage blossom and young shoots in cool, wet spring weather
- Watch ripening fruit for brown rot, which turns it to mush in wet weather
MaturityFirst proper crop 3-4 years after planting
- Established trees yield 15-30kg of fruit per season
- Brown rot remains the main disease risk on ripening fruit in wet seasons
- Silver leaf can infect through pruning wounds; prune in dry weather where possible