Gardening Top Tip: Tomatoes need calcium to achieve their full flavor potential, and calcium is often greatly lacking in our soils. 95% of a dry eggshell is calcium carbonate.
When planting your tomato plants crush up (to powder) about 4 or 5 egg shells and put them in the bottom of the hole. Then plant your tomato on top. They’ll provide calcium and prevent blossom end rot.
See Which Vegetables to Grow During Summer : Click Here
If you are looking for vegetables to grow during summer, these should be the ones you must consider. Plant Heirloom Seeds : Survival Seeds