Changing the Color of a Hydrangea to Blue

How do I turn a pink or white hydrangea blue?

By Joy

Ad
Pink flowering hydrangea in yard.
Showing: Answers Sort: Relevance
August 18, 20120 found this helpful

Check out this website. http://www.hydrangeashydrangeas.com/colorchange.html

ReplyWas this helpful?Helpful? Yes
August 19, 20120 found this helpful

Changing the PH of the soil. If you put fertilizer with more iron the color will get blue or purple, mean if you reduce the iron this will be pink.

I add coins, nails to the soil and the color of my flowers are really bright and beautiful.

ReplyWas this helpful?Helpful? Yes
August 20, 20120 found this helpful

The website galmud listed is excellent. Just a further note, there are some bred now that will not change colors, no matter what you do.

ReplyWas this helpful?Helpful? Yes
August 20, 20120 found this helpful

I tried it one year, clay dirt on one side of plant, ashes on the other side. I can't remember which does which, but that year I had pink & blue on one bush I took pictures to prove it. But that's been so long ago I lost pics & the bush is gone now.

ReplyWas this helpful?Helpful? Yes
August 20, 20120 found this helpful

Only your pink hydrangea can turn blue. A white hydrangea or a red hydrangea will never turn blue as only the pink hydrangea contains the delphinidine pigment which can combined with aluminum; aluminum being the secret of the blue colour.

The blue hydrangeas keep their colour if they are planted in an acid soil (pH should be between 5 and 6) and provided with aluminum sulphate. Preferably, they should be planted in full shade (facing the North as Hydrangea do not like the heat)

If your soil is not acid, dig a hole 40 cm wide and 40 cm deep. Fill it with 2/3 of peat soil and 1/3 of potting soil. Add near the roots; a handful of rusty nails and plenty of pieces of crushed slates.

Each year in the spring you can spread at the foot of the hortensia 1 tablespoon of the following products : "France blue" or "Alun Salt" or "Aluminum Sulphate."

The hydrangea will turn blue after it's given time to settle in its new place, which means a year. To keep the soil acid you can put regularly at the foot of the Hortensia: coffee ground, oak leaves, pine needles and most of all pieces of crashed slate.

You should avoid fertilizers containing nitrogen, as nitrogen prevents the uptake of aluminum. Gravels around the foot of the hydrangea (as on the picture) should be removed as they provide the soil with calcium and calcium neutralizes active acidity in the soil.

Good luck!

ReplyWas this helpful?Helpful? Yes
August 23, 20120 found this helpful

An easy and no cost way to get highly acidic soil is to simply save your coffee grounds. You don't have to do fancy stuff like mixing the grounds into the soil; just dump them on top in early to mid spring.

ReplyWas this helpful?Helpful? Yes

Add your voice! Click below to comment on this post or add your answer to this question. ThriftyFun is powered by your wisdom.

In This Article
Photo of a purple Hydrangea.
Changing the Color of Hydrangeas
Categories
Home and Garden Gardening FlowersAugust 15, 2012
More to Explore
ThriftyFun on Facebook
ThriftyFun on Pinterest
Enter a Contest
Free Newsletters
Ask a Question
Share a Post
Related Guides
Deadheading a Hydrangea
Deadheading a Hydrangea
Baby Blue Eyes (California Blue Bells)
Growing Baby Blue Eyes (California Blue Bells)
White changing table with drawers below.
Uses for a Baby Changing Table
Vertical Blinds
Changing the Color of Vertical Blinds
© 1997-2016 by Cumuli, Inc. All Rights Reserved. Published by . Page generated on June 19, 2016 at 7:29:21 PM on 10.0.2.135 in 1 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.
To Top
Loading Something Awesome!