"Container Gardening Alert: Not All Recycled Planters Are Safe for Your Edibles. As the trend of upcycling and repurposing continues to gain momentum, many gardeners are turning to old containers such as plastic bottles, tin cans, and wooden crates to create unique planters for their vegetable and herb gardens. However, a closer look at the materials used in these containers reveals some surprising safety concerns. From lead contamination in old paint to chemicals leaching from plastic, the wrong planter can pose a risk to your health and the environment. Before getting creative with your recycling, find out which containers are safe to use and how to prepare them for your edible seedlings."
While recycling all kinds of containers as planters for veggie or herb seedlings seems like a good idea, you need to check if the ones you're using are safe.