Jonagold needs a compatible pollinizer to fruit, and because its own pollen is sterile, a third tree to complete the pollination chain.

USU Extension does not list published pollination partners for Idared, so growers need to match bloom timing and fertility themselves before planting a second tree.

USU Extension does not name Honeycrisp’s pollination partners, so this page explains its early bloom timing, tree count, and what fails to work.

Granny Smith crops best with a same-season partner nearby, and this page names the varieties that pollinate it and the one that cannot.

Gold Rush apple blooms mid-season per USU Extension, but no specific pollinator partner is published, so match by bloom timing and zone instead.

Ginger Gold needs a second apple variety flowering nearby to fruit well, and only certain cultivars can supply usable pollen for it.

Gala needs a second variety such as Fuji or Granny Smith blooming nearby, since Mutsu flowers at the same time but cannot fertilize it.

Fuji needs a second apple variety in bloom at the same time, and one common partner, Mutsu, cannot actually pollinate it.

Fortune apples need a mid-season pollinator, but USU Extension has not published a specific partner list, so use bloom timing and proximity as your guide.

Empire’s pollination partners aren’t published by USU Extension, but its Mid bloom season tells you exactly what a compatible second tree needs to do.