A colorful garden experience

Which hydrangeas change color on their own?

Known as "Magic Hydrangea" there are some hydrangea varieties available in specialist shops that grow on their own flower color can change. They slowly change from a pastel shade to a darker color over a period of several months.

• The "Magical Revolution" variety starts out pink, later turns green and finally turns a strong burgundy in autumn.
• The "Magical Amethyst" changes from light blue to dark green.

How can I support the hydrangeas in their color change?

At Magical Hydrangea is no special maintenance effort necessary. It is often recommended to keep it as a houseplant. Nevertheless, you should of course meet the general needs of hydrangeas take into account:

• half shade Location
• water a lot, but avoid waterlogging
• nutrient-rich, permeable substrate
• low pH
• regular fertilizer application

Can a color change in hydrangeas be influenced?

With some hydrangeas it can actually Influence on flower color be taken. Crucial to this is the treatment of the soil in which the hydrangea grows. condition for the flowering colored is that the initial color of the hydrangea flower is pink. The decisive factors in the soil are:

• PH value
• aluminum content
• water hardness of the irrigation water

Start influencing the color change early. Because as soon as the flower is fully formed, a color change is difficult to achieve.

How can I dye hydrangeas blue?

To one bluing of hydrangea flowers, you must acidify the substrate and with aluminum sulfate enrich. You can achieve this by using hydrangea or rhododendron soil, compost, sulfur or vinegar water. Aluminum sulfate is also known as hydrangea blue.
A pH value of less than 5 should be achieved for the blue colouration. You can check the pH value with the appropriate test devices or strips from specialist retailers. Alternatively, you can use simple home remedies to find out whether the soil is acidic. To do this, put some baking powder or baking soda mixed with water in a container. Then add some soil. If the mixture begins to hiss or bubbles, the alkaline water has reacted with the acidic soil, and you can assume a low pH.

Tip

The chemistry of color change

The delphinidin contained in the flowers is responsible for the color change in hydrangeas. This actually red dye turns blue in connection with aluminum salts. At white hydrangeas lacks delphinidin, so their color cannot be changed.