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Hydrangeas & Coffee Grounds
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 soil pH, making it more acidic, the effect is temporary. Using coffee grounds as compost or mulch... More »
Difficulty: Easy
Source: www.ehow.com

homeguides.sfgate.com/hydrangeas-coffee-grounds-43622.html

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 ...

bestplants.com/12-interesting-ways-to-use-coffee-in-the-garden

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.

thegardeningcook.com/coffee-grounds

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.

www.pinterest.com/pin/486459197221321309

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 ...

www.katyelliott.com/blog/2012/06/blue-hydrangeas-do-coffee-grounds-work.html

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 ...

earth911.com/home/making-your-garden-beautiful-with-used-coffee-grounds

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.

.ask.com/youtube?q=Coffee+Grounds+and+Hydrangeas&v=bGF63sm8fOg
Jun 29, 2015 ... How to change the color of Hydrangeas with used Coffee Grounds: ... If your hydrangeas aren't producing the color their supposed to be, try this ...

www.endlesssummerblooms.com/resources/q-and-a

Get answers to questions about how much sun and water hydrangeas need, ... add aluminum sulfate, composted oak leaves, pine needles or coffee grounds.

www.city-data.com/forum/garden/316146-coffee-grounds.html

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, ...