After leaving them to cool, you will have to dry them well , because only in this way will they create a perfect mix with the earth. Now you can combine the mixture with the plants you prefer, perhaps those whose growth is most difficult.

You should know that the shells in question will only enrich the soil with nutrients , for real fertilization. Remember to repeat the procedure a few times a year or even a month, depending on the needs of your plants.

Over time, in fact, you should learn to know them and understand when they ask you for help because water is no longer enough for them. This way they will be healthy and thriving.