1: Add coffee grounds to soil for vibrant blue blooms.

2: Eggshells boost soil acidity for lush pink hydrangeas.

3: Banana peels provide potassium for healthy blooms.

4: Epsom salt feeds magnesium to promote bloom growth.

5: Mix crushed seashells in soil for stronger stems.

6: Compost enriches soil with nutrients for colorful blooms.

7: Milk nourishes hydrangeas and prevents disease.

8: Save citrus peels to naturally repel pests.

9: Yogurt containers serve as biodegradable plant pots.