How does the carbon footprint of producing concrete outdoor planters compare to natural stone?
The carbon footprint of producing concrete outdoor planters is generally higher than that of natural stone planters. Concrete production involves energy-intensive processes, including mining raw materials, high-temperature kiln firing, and transportation, which collectively emit significant CO2. In contrast, natural stone requires minimal processing—mainly quarrying and cutting—reducing its environmental impact. However, transportation distances for heavy stone can offset some benefits. For eco-conscious gardeners, locally sourced stone or recycled concrete planters may offer the best balance between durability and sustainability. Choosing materials with lower embodied energy helps reduce your garden's environmental footprint.