I was wanting to change hydraganea flowers colour, I know to do this you need to change the pH of the soil but I was wanting to know how long it will take for the hydrangea flower to change? And if the the hydrangea has already flowered can you change the pH and that same flower will overtime change colour or will it be the next season when they blossom that it will change colour?
- Sam asked 4 years ago
- last edited 4 years ago
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