Wildflower Seed Mixes
Flower Seed Species
Perennial Plants
Pre-Planned Gardens
Spring Planted Bulbs
Fall Planted Bulbs
Grass Seed
Event & Promo Packets
SEE ALL PRE-PLANNED GARDENS 
REMOVE THE GARDEN GUESSWORK

Pre-Planned gardens are perfect for those of us who need a bit of help creating flower groupings that complement one another's height, color, texture, and bloom time throughout the entire season.


NUMEROUS LAYOUT OPTIONS Pre-Planned Garden Layouts
Installing a Pre-Planned GardenInstalling a Pre-Planned Garden. Why Pre-Planned Gardens?Why Pre-Planned Gardens? How Our Plants are ShippedHow Our Plants are Shipped.


WHAT OUR CUSTOMERS HAVE TO SAY


“I couldn't have been happier with how it turned out.
My neighbor comments on it every time she walks by.”


Jan in Longmont, Colorado
SHOP EVENT & PROMO PACKETS 
PROMO & EVENT PACKETS 


Event Icon

Whether you’re hosting an event or looking for a unique business mailing, seed packets are an affordable and creative choice. The easy-to-grow, eco-friendly seeds inside will keep your event or business front of mind all season long.


5 REASONS TO BUY SEED PACKETS FOR YOUR PROMOTION OR EVENT 1) FREE ground shipping! 2) Promotional and event seed packet orders ship within 48 hours. 3) Non-GMO seeds and recycled paper 4) Mix and match discounts 5) Express shipping, just call (877) 309-7333


FULLY CUSTOMIZED SEED PACKETS 

Put your totally custom designs on seed packets.

Show meShowing plants & seeds that grow in my area:

Invalid Zip Code
ALASKA HAWAII MIDWEST NORTHEAST PACIFIC NORTHWEST SOUTHEAST SOUTHWEST WEST Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10
What is this To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’.

Hydrangea Magic: Changing Bloom Colors

Mixed blue and pink hydrangea blooms

Hydrangeas: Color-changing Magic?

Bouquet of Pink and Blue Hydrangea Blooms

A common question we get from gardeners each year is: "Why are my blue Hydrangeas pink, or, Why are my pink Hydrangeas blue?" The answer is really quite simple (and no, it's not magic). The color of your Hydrangea blooms are directly linked to the PH levels of your soil.

Knowing this important information means you can easily (well, somewhat easily) change the color of your Hydrangea blooms! Alkaline soil produces pink blooms and acidic soil produces blue blooms. The first step in determining the PH of your soil is to do a soil PH test to determine the acidity of your soil.

Blue to Pink:

A test result below 7 means that your soil is acidic (blue blooms). To raise the PH of your soil (to turn blooms pink), try adding limestone – most packages will tell you how much to add to increase your PH to the correct levels.You can also try using a fertilizer with high levels of phosphorus in it. This helps keep the aluminum in your soil from entering the root system of your plant. If you can't seem to lower the acidity in your garden beds, consider planting in pots.

Blue Hydrangea in Bloom

Pink Hydrangea in bloom

Pink to Blue:

A test result above 7 means that your soil is alkaline (pink blooms). To lower the pH of your soil (to turn blooms blue), you can add things such as sulfur, compost, pine needles, or pine bark. This will help to add some acidity to your soil. You can also try an organic fertilizer that is low in Phosphorus and high in Potassium.

Hydrangeas >> View All

  • Pee Wee Hydrangea

    Starting at $27.98

    Sale: $13.99

    Per Plant - 3.5" pot

  • All Summer Beauty Mophead Hydrangea

    Starting at $19.98

    Sale: $9.99

    Per Plant - 3.5" pot

  • Haas Halo Hydrangea

    $36.98

    Sale: $18.49

    Per Plant - 4" pot

  • Cherry Explosion Hydrangea

    $38.98

    Sale: $19.49

    Per Plant - 3.5" pot


The best success rate comes from gardeners who grow their Hydrangeas in containers, which allows for them to completely control the acidity of the soil with no outside factors.

Also note that it is easier to change a pink Hydrangea to blue than blue to pink. Other colors of Hydrangea cannot change colors with soil acidity.

What experience do you have changing the colors of your Hydrangeas? Please post in the comments below or on our Facebook Page.

Happy Gardening!

Interested in learning more about Hydrangeas?

Check out our easy-to-follow resources written by gardening experts

Browse Hydrangea

  • Pee Wee Hydrangea

    Starting at $27.98

    Sale: $13.99

    Per Plant - 3.5" pot

  • All Summer Beauty Mophead Hydrangea

    Starting at $19.98

    Sale: $9.99

    Per Plant - 3.5" pot

  • Haas Halo Hydrangea

    $36.98

    Sale: $18.49

    Per Plant - 4" pot

  • Cherry Explosion Hydrangea

    $38.98

    Sale: $19.49

    Per Plant - 3.5" pot


7 thoughts on “Hydrangea Magic: Changing Bloom Colors”

  • Dori Becker

    What is the name of a product I can search for to increase acidity. I have plenty of pine needles, etc, but am still having no luck turning my originally blue hydrangeas back to blue. Thanks!

    Reply
    • Mike Lizotte

      Hello Dori,

      If you have a lot of pine needles present, that's certainly a good sign that your soil is probably on the acidic side. I would recommend testing so you have a base line to begin with. Another common way to speed this process up is to add some sulfur powder. The organic breakdown of your pine needles will also help.
      Good luck and keep us posted on progress!

      Mike “The Seed Man”

      Reply
  • Ellen Wahlberg

    Hi...I have WHITE hydrangeas. Would it be possible to turn them pink or blue? I would love some color!!

    Thank you,
    Ellen

    Reply
    • Mike Lizotte

      Hello Ellen,

      I hate to be the bearer of bad news but white hydrangeas are almost impossible to change to other colors. I might recommend trying a Blue or Red variety and changing colors with these. These colors tend to be a little easier.
      If you’re wanting further information let me know and I can e-mail right over.

      Thanks and Happy Gardening!

      Mike “The Seed Man”

      Reply
  • mary

    I cannt get mine to bloom, I have had them for 6 years or more they grow and very green but nothing, no flowers nothing.. what do I do i love hydrangeas

    Reply
    • Mike Lizotte

      Hello Mary,

      Where are you located? Have you fertilized or done a previous pruning? What varieties did you plant?

      Let me know and I would be more than happy to provide further information and hopefully we can get you some blooms!

      Mike "The Seed Man"

      Reply
  • Marion Hickman

    Aluminum sulphate for blue, miracid for pink.

    Reply
Leave a Reply
You are using an out-of-date browser.

You will still be able to shop AmericanMeadows.com, but some functionality may not work unless you update to a modern browser. Update My Browser

×

Please wait...

Item added to your cart

has been added to your cart.

Continue shopping or View cart & checkout