Egg shells contains calcium and is essential for cell growth in all plants, especially fast growing plants needs calcium because they deplete the surrounding soil. Before you put egg shells in the soil, wash them and crush them. Whole shells brakes down very slow. You can:
– Dig a hole in the ground, put egg shells in and cover. Especially good for plants in pots. This way you also avoid bugs around the pot.
– Put egg shells in the bottom of plant pots
- Lay egg shells in the soil near the plant
– Lay egg shells in a circle on the ground surface around the plants stems to deter useful slugs and cutworms, but attract useful bugs.
Especially for tomatoes calcium is very useful, because it will help prevent blossom end rot.
So do not throw away the egg shells. You can save them by the stove for couple of days until next gardening.