Benefits:
Reduces weed growth
Keeps soil moisture stable
Protects roots from heat
Application:
Add a 1–2 cm layer around plants (but avoid touching the stem).
4️⃣ Repel Slugs, Ants, and Pests
The sharp, dry texture of ground shells irritates soft-bodied pests.
How to use:
Sprinkle around the base of plants
Create a protective ring around vegetables
Mix with cinnamon powder for stronger pest control
Safe for plants — tough on pests.
5️⃣ Use in Compost to Improve Breakdown
Adding pistachio shells helps:
Increase airflow
Prevent compost from becoming too soggy
Add structure and minerals
How to apply:
Add 1–2 cups of crushed shells to every compost bin layer
Never add whole shells (they take too long to decompose)
6️⃣ Strengthen Seedlings
When diluted, powdered pistachio shells help create strong root systems at early stages.
