Traditional wooden planters rot within 3 years in humid climates – a $2.7 billion problem globally (2024 Global Gardening Report)[1]. Galvanised steel planters solve this through zinc-coated durability. In our 2025 Miami beachfront project, these units survived salt spray that destroyed powder-coated models in 8 months.
Remember those warped plastic grow beds? We converted a London rooftop using corrugated galvanised planters. Result? 40% higher crop yields! The secret? Reflective steel surfaces maintained stable root temperatures during heatwaves.
| Galvanised Steel | Cedar Wood | |
|---|---|---|
| Lifespan | 25+ years | 4-7 years |
| Fire Resistance | Non-combustible | Ignites at 230°C |
| Maintenance | Every 5 years | Annual sealing |
