What's the best type of planter material for organic gardening?
I'm really passionate about organic vegetable gardening and I want to make sure I'm using the best materials possible for my planters. I've seen wooden, ceramic, and even metal planters out there, but I'm not sure which ones won't leach harmful chemicals into the soil. My garden is located in the beautiful Loire Valley, where we have a mix of sun and shade throughout the day. I've tried using wooden planters, but I worry about them rotting over time. Can anyone help with recommendations for durable, organic-friendly planter materials?