Eggshells make good seed starters, and when transplanted into soil, they break down naturally and nourish your herbs.
1. Slice off the top of eggshells with a sharp knife and pour the yolks and whites out, saving them for another use.
2. Rinse eggshells thoroughly, then air-dry in the carton.
3. Use a needle to puncture a small drainage hole in the base of each shell.
4. Mist the shells with water.
5. Scoop potting soil into shells with a small spoon.
6. Plant your seeds according to package instructions, and then gently mist with water.
7. Place carton on a sunny windowsill, and water according to package instructions while you wait for herbs to sprout.
8. Transplant them into a pot or your garden when your seedlings develop leaves. Gently crush the shells in the soil to speed the decomposition process.