
Eggshells are a source of calcium — but they work slowly.
Calcium helps strengthen plant cell walls and is important for fruit development. However, eggshells need time to break down before plants can access that calcium.
That means eggshells:
- help build long-term soil health
- do not fix calcium problems quickly
- won’t solve blossom end rot once it appears
Grow smarter:
Eggshells are a soil-building tool, not a quick fix.






