I’m a gardening pro – how to change the color of your hydrangeas, you can choose if they’re pink or blue
IF you want to change the hue of your hydrangea blooms, it turns out it’s completely possible.
It will take some little tweaks to nature, as well as a bit of patience.
According to Reader’s Digest, the way to change your hydrangeas’ colors is all in the soil.
It’s about whether the soil is acidic (low pH) or alkaline (high pH).
BLUE
To make hydrangeas blue, you’ll want the soil’s pH level to be 6.0 or below.
To achieve this, buy a soil acidifier plant fertilizer and feed your hydrangeas every one to two weeks.
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You can also lower the pH level of the soil by spreading pine needle or pine bark mulch around the plants.
Coffee grounds, compost tea, vinegar, and peat moss will also get the job done.
PINK
Pink hydrangeas need alkaline soil, with a pH of 7.0 or higher.
To make the soil more alkaline, throw in some ground or powdered limestone or wood ash.
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Be sure to repeat this multiple times throughout the growing season.
It takes longer to make the soil more alkaline, so the process for pink flowers will take longer than for blue flowers.
PURPLE
Hydrangea flowers begin to look reddish-purple to pale purple when the soil pH is between acidic and alkaline.
That said, you will often end up with purple flowers during the process of raising and lowering the soil pH.
To get a purple hue, you’ll want your pH to be between 6.0 and 6.9.