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Hydrangea Blueing Liquid Aluminium Sulphate 500ml
$15.99
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Apply to hydrangeas to produce and deepen blue coloured flowers. Supplies aluminium; which is needed to produce intense blue-coloured hydrangea flowers. An easy to use liquid formulation; Yates Hydrangea Blueing Liquid Aluminium Sulphate is easy to dilute and apply with no handling of dusty powders.
Features
Soil pH affects the colour of hydrangea flowers:
Acidic soil (pH 4.5-5.5) will produce blue flowers
Less acidic soil (pH 5.5 to 7) will produce pale; purplish flowers
Alkaline soil (pH 7 to 8.5) will turn flowers pink
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