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Blue One 30 grams

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 blooms. 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
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