Yates Hydrangea Blueing Liquid Aluminium Sulfate

Yates Hydrangea Blueing Liquid Aluminium Sulfate

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 Tonic is easy to dilute and apply with no handling of dusty powders.
Soil pH affects the colour of hydrangea flowers.

NOTE: Acidic soil (pH4.5-5.5) will produce blue flowers, less acidic soil (pH5.5-7) will produce pale, purplish flowers, while alkaline soil (pH 7 -8.5) will turn flowers pink.

To make your soil more acidic, use Yates Soil Acidifier.


  • Fast acting liquid
  • No handling of dusty powders


Guaranteed Analysis %w/v
Aluminium (Al) as sulfate 2.5

How to use

Directions for use:

Application – change chydrangea flower colour to blue; Maintain blue flower colour
Rate – Mix 20ml in 5L of water
Frequency – Every 3 to 4 weeks
Timing – Apply any time of the year or after winter pruning to adjust and maintain flower colour
Area – 5L / 5m2: Apply to moist soil around plant


Available sizes

  • 500ml


Material Safety Data Sheet

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Rated by tiborvk from Carine, WA


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