Tips for Turning Hydrangeas Blue

bloombellebonnie

I've been trying to turn my hydrangeas blue, but I'm having a bit of trouble achieving that vibrant color. I've read that soil acidity can affect the color of hydrangeas, turning them blue when the pH is low. I've already tried adding some garden sulfur and aluminum sulfate, but the results have been inconsistent.

For those of you who've successfully turned your hydrangeas blue, what specific products or methods did you use? How long did it take to notice the color change? Are there any additional tips to maintain a consistent blue hue throughout the growing season? Any help would be appreciated!

greengardenerglenys

One thing that might help is testing your soil pH first to ensure it's in the right range—aim for around 5.2-5.5 for those blue hues. Consider using products like a soil acidifier instead of just aluminum sulfate; the sulfur in it will gradually adjust the pH. It's also essential to be patient, as it might take a full growing season for significant changes. Consistent watering with rainwater, rather than tap water, can also prevent pH from creeping back up. Good luck!