Why Are My Blue Hydrangeas Turning Green?

Why is my hydrangea losing color?

Once pollinated, flowers no longer need to attract their pollinating suitors and, thus, begin to fade.

Finally, soil acidity may be responsible for altering or fading flower color.

A popular example of this phenomenon occurs with hydrangeas that seem to be particularly sensitive to the amount of acid in the soil..

Do coffee grounds change the color of hydrangeas?

If you’re growing hydrangeas, use coffee grounds to affect their color. Coffee grounds add extra acidity to the soil around hydrangeas. On a chemical level, this increased acidity makes it easier for the plant to absorb naturally occurring aluminum in the dirt. The effect is pretty blue clusters of flowers.

Do hydrangeas need sun or shade?

Can hydrangeas grow in full sun? Hydrangeas like morning sun, but do not do well if they’re in direct, hot afternoon sun. Partial shade in the later parts of the day is ideal for these beauties.

Are banana peels good for hydrangeas?

Additional soil improvers such as rock dust minerals, Epsom Salts (magnesium sulphate), mulch, worm castings, chopped banana peel or slow release plant food can all add valuable minerals and nutrients to the soil. These will boost your hydrangea’s growth.

Can you overwater a hydrangea?

Even though hydrangeas require more water than some other shrubs, they don’t like to be over-watered. It is best to have moist soil and not wet soil. One reason hydrangeas get over-watered is when they wilt in the afternoon sun. Our gut reaction is to run out and douse the plant in water, but STOP!

Why are my blue hydrangeas turning pink?

Soil runs from acidic to alkaline with varying degrees in between. The health of your plants is dependent on the health of your soil. In regards to hydrangeas, the flower color is affected and determined by the soil pH. If your soil is more alkaline, then your hydrangeas will be pink or pinker.

How do I keep hydrangeas from turning green?

A high pH makes the soil more alkaline, which will color the hydrangea blooms pink. A low pH makes the soil more acidic, which turns the hydrangea blooms blue. You can change the color of some varieties of hydrangea by adding aluminum sulfate to make the flowers more blue, or by adding dolomite to make them pink.

How do I keep my hydrangeas blue?

To encourage blue hydrangea flowers, grow the plant in soil that has a pH of 5.2-5.5. If your soil is more alkaline, you can lower the pH by applying Soil Acidifier at the rate specified on the package. Soil pH can also be lowered (more gradually) by applying an acidic organic mulch, such as pine needles or pine bark.

Will baking soda change the color of hydrangeas?

Baking Soda and coffee grounds are two of the items that can effect the color of your flowers. … You can control the color by altering the pH. Soil testing can determine your pH. Acidic soil, with a pH lower than 6.0, yields bluish hydrangea blooms.

How do I make my hydrangeas blue naturally?

Adding dried coffee grounds to the soil around hydrangeas increases the acidity of the soil, which boosts the blue-producing capabilities of the hydrangea and the ability to absorb aluminum from the soil. Monitor the pH level of the soil over time with a pH test kit; a range of 5.2 to 5.5 is best for blue blooms.

How do I make my hydrangeas Deep Purple?

With a pH between 6 and 7, the blooms turn purple or bluish-pink. To lower your pH, add garden sulfur or aluminum sulfate to your soil. To raise the pH, use ground lime. Follow the directions on the product you use, and retest your soil to make sure the pH is in the range you want.

Will vinegar turn hydrangeas blue?

If the soil has a pH lower than 7.0, hydrangea flowers will typically be blue. … For each gallon of water in your watering can, add one cup of white distilled vinegar and pour on your hydrangeas. The acidity of the vinegar will turn your pink hydrangeas blue or keep your blue blooms from turning pink.

Does Epsom salt turn hydrangeas blue?

The short answer is yes it will – Epsom Salts is Magnesium sulfate and Sulfur is the mineral that we apply to the soil to lower the pH. … This is also the reason that one will find most container grown hydrangeas in a soil-less mix with pink flowers unless they have been given fertilizers containing Aluminum sulfate.

How often should you put coffee grounds on hydrangeas?

Most hydrangeas will thrive with deep weekly waterings as opposed to lighter daily waterings and if you have coffee grounds in the soil it will keep the soil moist in between one watering and the next.

What side of the house do you plant hydrangeas?

Most hydrangeas will grow best in dappled or part shade. (They will let you know if they are getting too much sun — with browning leaves.) The southern side of the house is often the best place to plant hydrangeas. There are new varieties that can tolerate full sun but they will need more water in these conditions.

How do I get my hydrangeas to turn back in color?

To blue up a hydrangea, add aluminum sulfate according to the package directions. The sulfate turns the soil more acid, making it possible for the shrub to take up the aluminum.

When should you deadhead hydrangeas?

You should deadhead throughout the blooming season to keep your hydrangeas looking their beast and encourage new flower growth. However, stop deadheading hydrangea shrubs in mid to late fall, leaving any spent blooms in place.

Are tea bags good for hydrangeas?

Choose a good garden soil, moist and high in organic matter, to give your hydrangea a strong start. … Coffee grounds and tea bags can be used as a mulch around hydrangeas. It changes the pH of the soil and makes the pink ones turn to blue.