Hydrangeas will bloom a beautiful blue if you add kitchen item to soil

Now, if you are torn between which colours to plant, then you’ll be glad to know that changing the colour of your hydrangeas can be done by adjusting the acidity of your garden’s soil. And the best thing yet is that there are plenty of chemicals you can use to adjust the pH; everything you need to make your hydrangeas turn a stunning blue is already in your kitchen.

According to Ideal Home using teabags will help make your soil more acidic, giving you blue blooms.

Graham Smith, a gardening expert from LBS Horticulture said: “Adding teabags to the soil will change the colour of hydrangeas because tea contains tannic acid, which lowers the PH level of the soil and increases its acidity.”

Ted Bromley Hall, managing director of IBRAN Limited explained: “The colour-changing ability of hydrangeas is directly related to the soil level and aluminium availability. When the soil is acidic (pH below 6.0), aluminum becomes more available to plants, resulting in blue flowers.”

The results are simple to achieve. All you need to do is bury used teabags near the plants’ roots. You can also use teabags to make a black tea fertiliser, which provides essential nutrients like nitrogen, phosphorus, and potassium that are vital for plant health.

The teabag method is a cheap and effective way to experiment with the flowers. However, before using the method, you must know your soil’s pH level.

Soil pH metres offer accurate readings. The device can be bought in most garden centres or online for affordable prices ranging between £10 and £15.

Another even cheaper method involves using baking soda and vinegar. All you need to do is take two glasses and put a sample of soil in each. Add some vinegar to one of the samples to make a slightly thick mixture. If it bubbles, then your soil is most likely alkaline.

With the other sample, make a mixture with a bit of water, add baking soda, and if the mixture bubbles, you most likely have acidic soil. If nothing happens, your soil is neutral, but verifying with a pH metre is recommended.