Coffee grounds turn soil more acidic, helping hydrangea blossoms turn blue rather than the typical pink or white. The acidity of the grounds provides the key ...
Some coffee-loving gardeners may not realize that the used coffee grounds left ... high acidity could also be a helpful aid in changing the color of hydrangeas.
And more to the point, there are certain plants, such as hydrangeas, Camellias and roses that just love them! Don't throw those used coffee grounds away.
You can change the blossoms of Hydrangeas (Hydrangea spp.) from pink to blue by increasing the acidity of the soil. While adding coffee grounds may reduce ...
Jun 29, 2012 ... This spring I decided to test a theory to make the flowers bluer by adding coffee grounds to the base of the roots. To obtain blue hydrangeas ...
Apr 30, 2014 ... If you're growing hydrangeas, use coffee grounds to affect their color. Coffee grounds add extra acidity to the soil around hydrangeas.
Get answers to questions about how much sun and water hydrangeas need, ... add aluminum sulfate, composted oak leaves, pine needles or coffee grounds.
For at least 20 years I've been throwing my coffee grounds in the dirt around rose bushes and hydrangeas. (I only drink 1 cup in the morning, ...