Pyrus calleryana
treeZones 5–9Fast-growing ornamental with masses of white spring flowers and glossy green summer foliage turning red-purple in fall. Widely used as a street and landscape tree.
Thin narrow-angle branch crotches to reduce splitting risk. Remove water sprouts and suckers. This species is prone to storm damage.
Watch for blackened shoot tips that curve into a shepherd's crook shape. Prune 12 inches below infection.
Check for narrow crotch angles that could split in winter ice/snow. Consider cabling for weak unions.
Lawn Guardian turns this guidance into a schedule timed to your USDA zone and this week's actual weather — and adapts every time you log what you've done.
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