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 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.
|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)|