Eggshells as flower fertilizer work even better than bought fertilizer, and they save you money too

Autumn is the peak growing season for plants, so they need a generous supply of nutrients. If you use bought fertilizer, it will cost you quite a lot of money. Better to use the most common household waste of daily life - eggshells - and then add a few extra little things, and use them to grow flowers. That way you can give plants plenty of nutrients, and you never have to spend money on flower fertilizer again!
Using eggshells directly
First wash the eggshells clean, then put them out in the sun to bake. Once they are dried, crush the eggshells directly into a powder, then scatter it evenly over the surface of the soil. When you water, the nutrients in the eggshells will seep into the soil, supplying the plants with calcium and helping them grow stronger and sturdier.
Eggshells + fruit peel
First wash the eggshells and dry them in the sun, then crush them and put them into a clean plastic bottle. Add an appropriate amount of fruit peel, then place it out in the sun to bake. After roughly one month it will have fermented successfully. Then mix the liquid with clean water at a ratio of 1:100, stir well and water directly with it. This supplies the plants with plenty of nitrogen, phosphorus, calcium and other elements, and makes the root system grow stronger and stronger.
Eggshells + vinegar
Wash the eggshells clean, then crush them and put them into a clean container. Add an appropriate amount of vinegar, stir well and let it soak for a while. After soaking, fish the eggshells out, then mix the liquid with clean water at a ratio of 1:100, stir well, and pour it directly onto acid-loving flowering plants. This keeps the leaves a deep green and also prevents chlorosis, so you never have to worry about yellowing leaves again.