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Red Maple Seasonal Color Shift: Sugar Dynamics

Why Red Fades to Green

Anthocyanin (red) production depends on sugar accumulation. Spring: long days + cool nights = high sugar = red. Summer: shorter days + hot nights = sugar consumed > produced = green. Cultivar genetics and sun exposure modulate the effect.

Your Tree

Full sun, no added fertilizer (compost only). The sister tree may have different root conditions or microclimate. You cannot "remove" soil nitrogen quickly. Enjoy the seasonal show.

Minor Nitrogen Reduction

Water 1 inch/week (leaches nitrate). Stop compost. Time will dilute it.

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