Dr. Nikki Rothwell, director of the Northwest Michigan Horticultural Research Station, explains that although sweets typically blossom first with tarts coming 3-5 days after, there have been years when they’ve come at the same time. She noted that cherries are only receptive to be fertilized for a week or so, no matter how long the blossoms are out.

Here’s a video from a Leelanau orchard.