Most people toss eggshells without realizing they’re a natural calcium powerhouse for plants, pets, and even your home. Here’s why you should stop wasting them—plus 7 brilliant ways to reuse them.
Why Eggshells Are Valuable
✔ 93% calcium carbonate – Strengthens plants, bones, and more
✔ Rich in magnesium & phosphorus – Essential for plant growth
✔ Natural abrasive – Cleans pots, pans, and drains
✔ Pest deterrent – Keeps slugs and snails away
7 Genius Ways to Use Eggshells
1. Garden Fertilizer (Best for Tomatoes & Peppers)
How to use:
- Crush shells into powder
- Mix into soil (1 tbsp per plant)
- Prevents blossom end rot
2. Seed Starters (Biodegradable Pots)
How to make:
- Save half-shells
- Fill with soil & plant seeds
- Transplant directly into garden
3. Chicken & Bird Calcium Supplement
How to serve:
- Bake shells at 200°F for 10 mins
- Crush & mix into feed
4. Natural Pest Control
For slugs/snails:
- Scatter crushed shells around plants
- Sharp edges deter pests
5. Homemade Toothpaste (Mineral Boost)
Recipe:
- Blend sterilized shells + coconut oil
- Adds remineralizing calcium
6. Drain Cleaner (Eco-Friendly)
How to use:
- Grind shells into fine grit
- Flush with hot water to scrub pipes
7. Compost Booster
Why it helps:
- Balances acidic compost
- Speeds up decomposition
How to Prepare Eggshells Properly
- Rinse well (remove egg residue)
- Dry completely (sun or oven)
- Crush/grind based on use
Plants That Love Eggshells
✅ Tomatoes
✅ Peppers
✅ Roses
✅ Spinach
✅ Broccoli
Plants That Don’t Need Them
❌ Blueberries (prefer acidic soil)
❌ Potatoes (can develop scab)