Used coffee grounds are rich in acid, which is ideal for hydrangeas that produce blue flowers
Crushed eggshells provide a slow-release source of calcium, crucial for the structural strength
Banana peels are an excellent source of potassium, an essential nutrient that aids in flower development.
Used tea leaves add nitrogen to the soil, which promotes lush, green foliage.
Citrus peels, such as those from oranges and lemons, can deter pests like aphids and slugs
Collecting vegetable scraps like carrot peels, lettuce leaves, and potato skins for composting enriches
Onion skins are full of potassium, calcium, and magnesium, which are beneficial for hydrangeas.
The water used to boil vegetables is rich in nutrients. Once cooled, this nutrient-rich water can be used to irrigate your hydrangeas