What are the best liners for granite outdoor flower boxes?

When choosing liners for granite outdoor flower boxes, durability and functionality are key. The best options include:

1. Plastic Liners – Lightweight, affordable, and waterproof, preventing soil leakage and protecting granite from moisture damage.

2. Fabric Liners – Breathable and promotes healthy root growth while keeping soil contained.

3. Rubber Liners – Flexible and long-lasting, ideal for harsh weather conditions.

4. Coir Liners – Eco-friendly and biodegradable, great for natural drainage and aeration.

5. Metal Liners – Sturdy and rust-resistant, offering excellent protection for granite boxes.

Ensure proper drainage holes to prevent waterlogging and extend the life of your flower box. Choose a liner that balances protection, drainage, and plant health.