Science + Plants: How to Magically (& Naturally) Turn Hydrangeas from Pink to Blue 

Acidic Soil, Helpful, Hydrangeas -

Science + Plants: How to Magically (& Naturally) Turn Hydrangeas from Pink to Blue 

Science + Plants: How to Magically (& Naturally) Turn Hydrangeas from Pink to Blue 

blue, pink and lavender hydrangeas in the garden

It sounds magical and mythical and just too darn good to be true! But no, it's just using scientific knowledge and a simple change in your soil that can completely transform the color of your hydrangea!  All you need to do is help your soil move from a more basic alkaline environment to an acidic environment. What is alkaline? What is acidic? Well, there is a pH scale with levels ranging from pH 0-14. Anything BELOW a pH 7 is considered acidic and anything ABOVE a pH 7 is alkaline, or basic. 7 itself is neutral.   

Natural items from our household that can help make our soil more acidic are things like coffee beans and vinegar while egg shells would help neutralize acidic environment to be more basic. The coffee grinds provide nitrogen & tannic acids to the soil.  Acid loving plants such as azaleas, blueberries, butterfly weeds, camellias, ferns, gardenias, lupines & rhododendrons especially love coffee grinds. But hydrangeas have a particularly special relationship with acidic soil! 

Generally speaking, hydrangeas in acidic soil, meaning with a pH lower than 6.0, yields blue or lavender colored hydrangea blooms. Alkaline soil, with a pH above 7.0, promotes pink and red blooms. With a pH between 6 and 7, the blooms turn purple or bluish-pink It sounds very scientific and hard but actually it is very easy; all that is needed are some common kitchen scraps. 

Most species of hydrangea will change color depending on the pH level of their soil, though it appears as though white hydrangeas are the exception to this rule. Basically, if the soil is more acidic, then the hydrangeas can absorb more aluminum from the soil. Continuing to absorb more aluminum will turn pink hydrangeas blue and keep it that way! 

Adding coffee or pine needles to your compost is simple yet very effective in adding acidity to your soil. However, if you’re using coffee in the ground soil directly, it’s best to mix coffee grounds in combination with mulch like wood chips to avoid compaction if you are not going to make compost. Using coffee directly in your soil can provide additional benefits to your soil like maintaining more moisture and it also attracts earth worms that are helpful in aerating your soil.  

Since coffee grounds don’t permanently acidify garden soil, as do peat moss or sulfur-based additives; they’ll only affect the acidity in the immediate area they’re added to; making it an amazing way to acidify plants in containers. For ground soil, you will need to work the coffee grounds into your garden soil on a regular basis to bring up the acidity over time. Remember, either way you choose to acidify your soil, it may take several months for a change in color to occur. No matter what, have fun experimenting with your soil and plants!  


4 comments

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    I want to give thanks to Dr Ogaga for bringing back my ex husband. No one could have ever made me believe that the letter I’m about to write would actually one day be written. I was the world’s biggest skeptic. I never believed in magic spells or anything like this, but I was told by a reliable source (a very close co-worker) that Ogaga is a very dedicated, gifted, and talented person, It was one of the best things I have ever done. My love life was in shambles, I had been through two divorces and was on the brink of a third. I just couldn’t face another divorce, and I wanted to try harder to make our relationship work, but my husband didn’t seem to care. and he brake up with me again. I was confuse and do not no what to do again, rather them to get in contact with Dr Ogaga . He did a love spell that make my husband come back to me. we are now very much happy with our self. Dr Ogaga make him to realize how much we love and need each other. This man is for REAL and for good, he can also help you to fix your broken relationship. I had my husband back! It was like a miracle! He suddenly wanted to go to marriage counseling, and we’re doing very, very well, in our love life. Contact

    Email: drogagalovespell@gmail.com

    WhatsApp: +2347059387282

    Facebook Page: https://www.facebook.com/drogagalovespell

  • Hudson Elizabeth

    Advice to save your marriage and get your Ex Boyfriend/girlfriend back ,contact drogagalovespell@gmail.com or WhatsApp +2347059387282 for Urgent effective love Spell to get ex lover back or save you marriage fast and his result is 100% guarantee.

    I want to give thanks to Dr Ogaga for bringing back my ex husband. No one could have ever made me believe that the letter I’m about to write would actually one day be written. I was the world’s biggest skeptic. I never believed in magic spells or anything like this, but I was told by a reliable source (a very close co-worker) that Ogaga is a very dedicated, gifted, and talented person, It was one of the best things I have ever done. My love life was in shambles, I had been through two divorces and was on the brink of a third. I just couldn’t face another divorce, and I wanted to try harder to make our relationship work, but my husband didn’t seem to care. and he brake up with me again. I was confuse and do not no what to do again, rather them to get in contact with Dr Ogaga . He did a love spell that make my husband come back to me. we are now very much happy with our self. Dr Ogaga make him to realize how much we love and need each other. This man is for REAL and for good, he can also help you to fix your broken relationship. I had my husband back! It was like a miracle! He suddenly wanted to go to marriage counseling, and we’re doing very, very well, in our love life. Contact

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