Hydrangeas are shrubs that have large, sublime flowers. The most common are pink, white and blue colors. They are also known because their color is easy if you know and adopt the necessary techniques. Thanks to them, you can change their color to adapt them to your interior or your garden. These flowers take on the color of the pH of the soil where they are planted. Discover with a step-by-step guide how to change the colors of these flowers, obtaining the shade you want.
1. To Get Pink Flowers
Pink hydrangeas are the most common. These flowers are the majority because they are watered with clear water. Result: The pH of the soil drops and loses its acidity. This happens because of lime in the water. Raise the pH by adding calcium nitrate or sawdust and you will get pink flowers. Please note, this technique must be used once. Flowering plants need soil acidity to grow healthily. Prolonged treatments to vary flower colors that increase or decrease the acidity level can harm the plant over time.
2. To Get White Flowers
When you have hydrangeas of different colors like pink or blue, you can change them to white. To achieve this, you will need to raise the pH of the soil to 8. To achieve this pH, you must provide the soil with fertilizers high in nitrogen and phosphorus such as eggs or meat substitutes. When you notice that the plant is in poor condition, immediately start watering the soil again with rainwater or running water to gently lower the PH.
3. To Get Blue Flowers
For the flowers to retain their original blue color or for the tone to become more vibrant, you will need to lower the pH of the soil to less than 5. This level is low and is perfect for hydrangeas. To obtain this tone by lowering the PH, you will make a homemade aluminum sulfate by mixing 2 grams of aluminum sulfate in a liter of water and this mixture you will water your plant at least every three days. You can obtain these ingredients from a store specializing in gardening.
4. To Get Red Flowers
Each soil has its own pH. By measuring it, you can take action to change the colors. To obtain red colored hydrangeas, you will need to raise the pH of the soil to 6 or 6.5 and to do this you will add aluminum sulfate which you will easily find in a store specializing in gardening. With this pH, you will get bright red or brown hydrangeas. We must not forget that it will need acidic soil to grow healthily. It is therefore recommended to use this system for a short period of time so that it resumes with its natural color and regains its strength and health.
