Blue One Aluminum Sulphate 30g
Blue One Aluminum Sulphate 30g

Blue One Aluminum Sulphate 30g

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Blue One 30g

Blue one is a soil amendment to enhance the pure blue colour of blue Hydrangeas. Blue One Lowers the pH in a neutral or alkaline soils which results in amazing blue b looms. For astounding blue hydrangea blooms, soil pH should be in the range of 5.0-5.8. 

  • Simply sprinkle content of pouch on soil surface in one easy step.
  • No need for mixing, measuring or diluting in water
Guaranteed Minimum Analysis table


Existing Plants:
Simply tear opened pouch and sprinkle blue one evenly on top of container soil according to the chart below. blue one has a release time of approximately 2-3 months (at a 21°C average soil temperature). Re-apply as needed.

Container Size: Rate:
10 cm (4) 1/6 pouch (5 g)
15 cm (6") 1/3 pouch (10 g)
20 cm (8") - 1 Gallon 1/2 pouch (15 g)
25 cm (10") - 2 Gallon 1 pouch (30 g)

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