Do I Need Two Trees for Pollination?

Self-fertile vs. cross-pollinating

Self-fertile trees (for example some plums and cherries, and self-fertile apples such as certain older cultivars) can set fruit with their own pollen. Self-incompatible trees need a compatible second cultivar. Check the variety's listing before assuming one tree is enough.

Matching pollination partners

• Pick cultivars whose bloom periods overlap (same or adjacent flowering group)
• Keep partner trees within roughly 55 feet for effective bee transfer
• Crabapples can pollinate many apple varieties
• Avoid relying on triploid varieties as pollen sources; their pollen is largely sterile

→ Triploid apples and pears (such as Bramley's Seedling) produce mainly sterile pollen and need two other compatible trees to set their own fruit.

Sources

Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources — and never invent pesticide rates or dangerous treatments.

• RHS — Fruit basics: fruit pollination — Many fruit trees need another cultivar flowering at the same time within ~18m; some are self-fertile; triploids give sterile pollen.
• University of Maryland Extension — Tree fruit pollination — Most apples require a second cultivar as a pollenizer; some cultivars are self-fertile or partially self-fertile.
• University of Minnesota Extension — Growing apples — Apples generally need a second, compatible cultivar with overlapping bloom for good cross-pollination.

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