A single dwarf McIntosh apple tree cannot self-pollinate (unless labeled "self-fertile"). Apples require cross-pollination from a different variety blooming simultaneously. Asparagus and Rose of Sharon provide no pollen compatibility.
Plant a second dwarf apple of a compatible variety:
Dwarf trees need little space. Two varieties extend harvest season and use options (McIntosh = sauce/baking; Golden Delicious = fresh).
OSU Extension: Growing Apples for the Homeowner—comprehensive guide.
Brown Spots Inside Green Apples: Disease or Physiological Issue?
Espalier Apple Pruning: Leader Removal Unlikely to Kill Tree
Old Apple Tree with Borers and Sapsuckers: Management Limits
Young Apple Tree Fruit Failure: Water, Depth, Transplant Stress
Apple Seedlings: Will Grow Into Trees, But Fruit Quality Is a Lottery
Apple Tree Regrowth from Root Sprouts and Moss Control in Garden Beds
Remove Rotten Apples from Orchard to Reduce Disease
Mechanical Bark Damage on Bramley Apple Tree: Old Injury, Slow Decay
Apple Orchard Problems at High Elevation: Borers, Sun, Heat, Pruning Bleed
Systemic Bacterial Infection in Apple: Atomic Grow (US Only)
Apple Tree Curly Leaves: Powdery Mildew on Single Tree
Apple Tree Woolly Aphids: Atomic Grow Organic Cleanup and Vigor
Investigating Black Jelly-Like Exudate on Weeping Apple Tree Branches
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