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Saving a Stressed Japanese Maple in a Pot

Leaf scorch (tips browning inward) comes from drought stress or fertilizer burn. Morning sun is ideal. If potted, water deeply (soaker/sprinkler) weekly — twice weekly if nights >75°F. No fertilizer. Japanese maples survive scorch and burn. In zone 5, pots need zone 7 temps (0-10°F low) to overwinter outside — otherwise move to unheated garage/shed in coldest weeks. Add compost yearly, use organic fertilizer.

Annuals: Japanese Maple Honeydew and Sooty Mold: Aphid or Scale Infestation; Orange Fungus at Base of Japanese Maple: Mulch Decay, Not Tree Disease; Japanese Maple Sunscald: Identification, Prevention, and Borer Risk; Japanese Maple Early Color Change: Drought Stress or Root Suffocation?; Japanese Maple Lost All Leaves After Planting: Shock or Deer?; 'Inaba Shidare' Japanese Maple: Identification and Container Growing Guide; Bees Swarming Japanese Maple: They’re After Aphid Honeydew; Japanese Maple Freeze Damage: Spring and Fall Fertilizing; Yellow Fungus on Japanese Maple Branches: Likely Wood Rot, Not Surface Fungus; Japanese Maple Tree Diseases: Identification and Treatment

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