How to Change the Color of Hydrangeas

How do you get blue hydrangeas?

Hardiness Zone: 8a

By tf1 from GA

May 6, 20090 found this helpful

My grandmother always said to put a rusty nail in the ground next to your plant, that will change the color.

ReplyWas this helpful?Helpful? Yes
May 14, 20090 found this helpful

Rusty nail is for iron deficiencies. I think you add aluminum sulfate to the soil to get the blue color.

ReplyWas this helpful?Helpful? Yes
July 20, 20110 found this helpful

Hydrangea blue or purple blooms come from highly acidic soil. You don't need to buy some chemical additive; you can get acidic soil by dumping your used coffee grounds on top of the soil.

ReplyWas this helpful?Helpful? Yes

Add your voice! Click below to comment. ThriftyFun is powered by your wisdom!

In This Article
Photo of a purple Hydrangea.
Changing the Color of Hydrangeas
Home and Garden Gardening FlowersMay 6, 2009
Dividing Hydrangeas
Growing Hydrangeas Inside
Growing Hydrangeas Inside
Propagating Hydrangeas
Propagating Hydrangeas
Hydrangeas in a Clay Pot
Growing Hydrangeas in Containers
New Years Ideas!
Christmas Ideas!
Ask a Question
Share a Post
You are viewing the desktop version of this page: View Mobile Site
© 1997-2016 by Cumuli, Inc. All Rights Reserved. Published by . Page generated on December 6, 2016 at 4:36:06 PM on in 2 seconds. Use of this web site constitutes acceptance of ThriftyFun's Disclaimer and Privacy Policy. If you have any problems or suggestions feel free to Contact Us.
Loading Something Awesome!