Apple: flowers dropping without setting fruit

What it is likely to be on apple

1. Poor fruit set

   Candidate 1common on this plant

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Apples — pollination
   • Royal Horticultural Society: Fruit — poor cropping

   Checked 2026-08-13

   A plant that flowers freely and sets little or no fruit. It is the commonest disappointment in fruit growing and it has four quite different causes, only one of which is the plant's fault. Working out which applies is the difference between fixing it and replacing a healthy tree.

   Points towards it

   • · a tree with nothing to pollinate it fails everywhere at once, because the shortage is of pollen rather than of anything the tree has
   • · an unpollinated tree flowers beautifully and sets nothing year after year with no event to point at, which is what makes it so often mistaken for a sick tree
   • · it depends on insects reaching the blossom from another tree in flower

   Argues against it

   • · a frost during blossom explains the failure by itself, and a tree that cropped in previous years has a partner

   Check this next

   Ask what happened in previous years rather than what the flowers look like. A pollination problem is a standing condition: the tree blossoms well and sets nothing, every year, and the neighbours' trees crop. Look at whether anything else was in flower within a hundred metres at the same time, and check the variety against the pollination tables — a triploid such as Bramley cannot pollinate anything and needs two partners itself.

   What to do now

   Check the cultivar's pollination group and compatibility before doing anything to the tree, because the fix is a second tree rather than a treatment. A family tree, a crab apple, or a neighbour's tree in the same group all count. Hand-pollinating a few branches with a soft brush at full blossom is a reliable way to test the theory in one season.

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Apples — pollination groups

   Checked 2026-08-13

2. Cold damage

   Candidate 2common on this plant

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Frost damage
   • MSU Extension — Michigan State University: Critical spring temperatures for tree fruit

   Checked 2026-08-13

   Blackened, translucent or limp tissue appearing suddenly after a cold night or a spell beside a draught. Tender plants show it well above freezing — basil blackens around 10 °C — so 'there has been no frost' does not rule it out.

   Points towards it

   • · a clear night below freezing during open blossom kills the flower where it stands
   • · frost settles and pools, so damage is worst low down and on the side that caught the first morning sun
   • · an unprotected tree in the open is what is at risk

   Argues against it

   • · blossom kept above freezing under cover was not frosted — this rules it out entirely.
   • · warm weather through blossom rules out the mechanism entirely — this rules it out entirely.

   Check this next

   Open one of the failed flowers and look at the centre. A frosted blossom has a blackened or brown centre where the ovary and style should be green, and it happens on the whole flower at once — the petals can still look almost normal for a day or two afterwards, which is why people miss it. Then look at the height: frost damage has a ceiling, so blossom above head height often sets normally on the same tree.

   What to do now

   Nothing can be done for blossom already frosted, and pears in particular will still carry a partial crop from the flowers that escaped, so do not prune or feed in response. For future years, fleece a small or trained tree overnight when frost is forecast during blossom and remove it by day so insects can work, and avoid planting early-flowering pears in a frost pocket at the bottom of a slope.

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Frost damage — protection

   Checked 2026-08-13

3. Natural fruit drop

   May be normalvery common on this plant

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Fruit — June drop
   • Cornell Fruit Resources — Cornell University, College of Agriculture and Life Sciences: Apple — fruit thinning and June drop

   Checked 2026-08-13

   A tree or plant shedding some of the fruit it has set, usually a few weeks after flowering. It is self-thinning rather than a failure: far more flowers are pollinated than the plant can carry to maturity, and the fruit that fall are the ones it has decided against. Apples do it so reliably in early summer that the event has a name.

   Points towards it

   • · the tree adjusts its whole crop load at once, so the shedding is general
   • · nothing has to happen for June drop to happen — it is the tree's own arithmetic, and the absence of any event is evidence for it rather than against
   • · a tree on ground with water available is shedding by choice rather than under stress

   Argues against it

   • · a tree dropping fruit on ground that has dried out is more likely to be shedding under water stress, which is a different answer with a different action

   Check this next

   Pick up a dropped fruit and look at it. June drop sheds fruit that had genuinely set — pea to marble sized, with a formed core — and it happens over a week or two in early summer, leaving a good crop still on the tree. Flowers shed before setting anything are a pollination or frost question instead, and fruit dropping later in the season with a small hole and frass in it has an insect in it.

   What to do now

   Leave it entirely alone, and expect to thin further by hand rather than less. A tree that has just shed its surplus is doing what gives the remaining fruit size and what keeps it from cropping only in alternate years — feeding or watering heavily in response works against both. Thin what is left to one fruit every 10–15 cm once the drop has finished.

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Apples — thinning

   Checked 2026-08-13

Narrow it down

This page lists everything at once, which is the right shape for reading and the wrong shape for deciding. The interactive tool asks one question at a time, starting with whichever would separate these causes fastest, and stops as soon as further answers would not help.

Opens with the plant and the symptom already set. Nothing you answer is stored or sent anywhere — the answers live in the address bar and nowhere else.

What this does not cover

These are the causes GrowingHQ holds rules for on apple — not every cause there is. Where several problems look alike, the honest answer is often that they cannot be told apart by eye, and a page that named one would be guessing. If none of the above fits, the general flowers dropping without setting fruit page lists causes across all plants, and the Apple profile lists the problems it is prone to.