My southern highbush, Star, Santa Fe, and Southmoon set all berries regardless of bees or pollination.
But the new variety Brigitta is dropping fruit. This is it's first year fruiting. I set it out with others hoping for bees but they weren't interested. About 75% of the fruit are falling off. Blueberry (Vaccinium corymbosum) bushes are self-pollinating to an extent, but grow larger fruit through cross-pollination by a second variety. Both varieties of blueberries involved in cross- pollination need to have bloom times that are at the same time of the season to be successful.
Jan 14, Blueberries bud in summer and flower the following spring, yielding berries from early summer to early fall. Shorter fall days combined with cooler night temperatures signal to the plant that it is time to become dormant.
Jul 19, A factsheet on drought stress symptoms in blueberries has been posted at the Michigan Blueberry Facts website. Marginal leaf burn is a common symptom of drought stress in young plants. Young blueberry plants are especially vulnerable because their roots tend to be shallow and the top soil depths dry out most bushfall.buzzted Reading Time: 2 mins. Description: Most of the flowers on the bush have opened.
The bloom stages can tolerate 28⁰ F (⁰C).
Plant part: Flower. Description: The corolla tubes are falling off the flowers, revealing small green fruit. This is the most vulnerable stage to freeze injury.