If you are using homegrown compost for your vegetable garden, try adding some eggshells in fall and spring.
Eggshells contain calcium carbonate, which is good for plant structure. Be sure to remove egg residue and dry the shells on the counter for a day or two. When the shells are fully dry, crush them with a rolling pin to make very small pieces. Add a one or two tablespoons to compost or planting holes, balancing the shells with the compost and soil, according to RD.com.
It can be especially important for your garden because DIY compost can often be too acidic for vegetables. Crushed eggshells fix that problem, plus they reduce food waste and prevent blossom end rot, especially in tomatoes. Eggshells are especially effective for houseplants, tomatoes, broccoli, and leafy greens.
On the other hand, some garden plants won't like eggshells, such as blueberries, azaleas, mountain laurel and pieris.
