Never plant tomatoes without this. You will get large, healthy fruits.

Once the shells are dry, grind them into a fine powder using a coffee grinder. Pour this powder into the hole where you will be planting your tomatoes. This powder will provide calcium, a vital element for the production of healthy fruit. Eggshells are one of the best natural sources of calcium, essential for preventing problems like blossom-end rot in tomatoes.

Combating Blossom End
Rot Blossom end rot is a common problem caused by a lack of calcium in fruit. It manifests itself as rot at the base of the tomatoes before they reach maturity. This deficiency can be due to several factors, such as low soil pH or inadequate irrigation. Using eggshell powder is a natural and effective method to supplement this calcium deficiency.

Watering Tomatoes
Tomato plants don't like to get their leaves and stems wet. Plus, shallow watering can create a hard crust on the soil that needs to be broken up. To effectively water your deep-planted tomatoes, use the following technique.

Effective watering technique
Bury a perforated plastic pot near the roots of the tomato plants. Pour water into this pot; the water will go directly to the roots, deep down, without wetting the leaves or stems of the plant. This ensures optimal hydration of the roots while keeping the soil surface dry and aerated.

By following these tips and adopting these techniques, you will increase your chances of growing healthy and abundant tomatoes.