Easy to cultivate, geraniums flourish when temperatures range between 15 and 25 degrees Celsius. They thrive in direct sunlight, painting balconies and terraces with magnificent blooms in the summer. Beyond their aesthetic appeal, geraniums act as natural mosquito repellents due to their intense fragrance, often found in insect-repellent sprays.
All three plants share a common need for a mineral not always present in the cultivation soil: magnesium. If the soil lacks this essential mineral, flowering may suffer, particularly in summer due to increased dispersion during chlorophyll photosynthesis.
Fortunately, the remedy is simple. You can purchase magnesium powder and add a tablespoon to 10 liters of water, then use two liters at the base of your roses, geraniums, and hydrangeas.
Alternatively, you can soak a banana peel in 500 ml of water overnight and dilute it in your watering can. Bananas are a rich source of magnesium and potassium, serving as a natural fertilizer while reducing waste.
Isn’t it ingenious?
Give it a try, and you won’t regret it!
