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Planting Hydrangeas with Spirea and Burning Bush: Soil pH Considerations

Linda wants blue hydrangeas between burning bushes and spirea. Spirea pH 6–7, burning bush 5.5–7.5 (very adaptable). Hydrangeas bloom blue in acid soil, pink in alkaline. Soil pH changes slowly (like dieting). Don't guess with vinegar — test soil via Cooperative Extension first. Plant shrubs far enough apart to minimize pH conflict.

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