The second drop happens in midsummer.

Sep 21, Plum trees drop fruit naturally in two major cycles. The first drop happens in spring when the tree sheds infertile plums over a two- or three-week period after blooming. The second drop happens in midsummer. Not all plum varieties exhibit this June drop, which most commonly affects the Italian prune plum. Plums Falling Off Tree Before Ripe I have a plum tree that produces lots of fruit, but just before they get ripe they fall off.

Lack of pollination or brown rot could be the cause. Plum trees are very particular about their pollinators. Plum trees are susceptible to fungi, bacteria, viruses and nematodes. Damage to the tree may cause a decline in fruit quality or viability and fruit may drop. In addition to fruit drop, indications.

May 17, There can be numerous reasons why a plum tree drops its fruit before it ripens: insects, disease, high winds, and stress (too much water, too little water, lack of nutrients, poor drainage, weed Estimated Reading Time: 2 mins. Jun 19, I'd like to talk about a plum in zone 3.

Possibly brookgold, fruit's yellow c/w red blush, roughly 3 cm. long. Here in Alberta parkland, we had a record-smashing mild winter.

And decent precip. this spring. Super flowering, and super fruitset, except for trees that bore prodigiously last year. The plum has a huge number of ovules still clinging.