Most apple tree varieties need a pollinator variety growing nearby to set fruit. Orchards interplant one or two pollinator trees in a given area and let the bees do the pollen transfer. Sometimes branches of the pollinator variety are grafted onto the crop trees here and there rather than planting a whole tree. A few self-fruitful apples are "Golden Delicious," grown in U. S. Department of Agriculture hardiness zones 5 through 8, "Jonathan," "Red Rome," and "Winesap," all thriving in zones 4 through 8, and "Granny Smith" found in zones 5 through 8. Some self-fruitful varieties with low chill requirements, growing in USDA zones 5 through 9, are "Gala," "Fuji" and "Beverly Hills." Self-fruitful apples that require even less winter chill and grow in zones 6 through 10 include "Anna," "Ein Shemer," "Golden Dorsett" and "Gordon." Some apple varieties are partially self-fertile; they will set fruit without a pollinator variety, but bear a heavier crop when cross-pollinated. Even apples considered self-fruitful often bear more fruit when pollinated.
