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To make hydrangea flowers turn blue, you can adjust the acidity of the soil by adding aluminum sulfate or other acidifying agents. This helps the plant absorb aluminum, which turns the flowers blue.

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AnswerBot

6mo ago

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How do you make white hydrangea turn blue?

Hydrangeas grow different colored flowers depending on the pH of the soil.


How can I change the color of a hydrangea plant?

You can change the color of a hydrangea plant by adjusting the pH level of the soil. Adding aluminum sulfate to the soil will make the flowers turn blue, while adding lime will make them pink.


How can I change the color of my hydrangea plant?

You can change the color of your hydrangea plant by adjusting the pH level of the soil. Adding aluminum sulfate to the soil will make the flowers turn blue, while adding lime will make them pink.


Do pennies placed in the soil next to hydrangea plants effect the color?

Not that I've heard. Many hydrangea strains will have different flower colors, depending on the aluminum content of the soil. When there is available aluminum, the flowers will be blue. When there is no available aluminum, they'll be pink. This doesn't work for white hydrangeas. You can add aluminum sulfate, which is available at most garden centers, to turn pink flowers blue. In order to turn blue flowers pink, raise the soil pH by adding a liming material, and the aluminum will form insoluble compounds and no longer be available to the plants.


How do you make Hydrangeas blue?

Hydrangea need acidic soil, below ph6. If the soil is alkaline (ph above 7) then the flowers will turn pink. Don't expect this to happen quickly. It may take an entire season.


How do you make a pink hydrangea turn blue?

you need to change the soil PH, if i remember corectly you need to lower the PH but ask a nursery :)


Why have your blue agapanthus turned white?

Agapanthus colour is normally genetically determined, as such a white flower cannot turn blue. This does happen with flowers such as Hydrangea, where a blue or white flower can be turned pink - this is a result of the pH or acidity level of the soil


How can you change the color of hydrangeas to blue?

You can change the color of hydrangeas to blue by adjusting the acidity of the soil they are planted in. Adding aluminum sulfate to the soil can help make the flowers turn blue.


How does soil pH affect flower color?

Well, if the soil is acidic then the flower would turn and pink/red colour. if the soil had alkali then the colour would change to blue. Gardeners use this to make Hydrangeas change colour. other colours are possible to make, it all determines the Ph of the soil.


Why do hydrangeas change color?

Hydrangeas change color based on the pH level of the soil. Acidic soil produces blue flowers, while alkaline soil produces pink flowers. Changing the pH level of the soil can shift the color of the hydrangea blooms.


Why did the white carnation turn into a blue carnation?

Florists sometimes put white carnations into blue dye. The flowers absorb the dye and it turns the flowers blue.


How do you make pink hydrangea turn white?

You can make pink hydrangeas turn white by adjusting the pH of the soil. Alkaline soil (pH above 7) encourages pink blooms, while acidic soil (pH below 7) promotes white blooms. To turn pink hydrangeas white, you can add aluminum sulfate to lower the pH of the soil.