Pressure Treated Lumber For Raised Beds
From what i ve seen the consensus is that the chemicals do leach out of the wood into the soil and are uptaken by the plants in very small amounts.
Pressure treated lumber for raised beds. The safety of pressure treated lumber for raised bed gardens has been examined by several researchers. Concerns have focused on the leaching of arsenic from pressure treated wood into the soil contaminating plants and people. Some have the same look and others are a different approach altogether. There are several different alternatives to using pressure treated lumber to build raised beds.
Wood treated with chromated copper arsenate or cca can leach toxic arsenic into soil. He stated in a bulletin titled treated wood in raised bed gardening scientific evidence and data have shown that using pressure treated wood for raised bed or box gardening is safe to adults and children in terms of the plants grown and used in these containers he further explains all chemicals in consumer products have a toxicity. While there is scientific consensus that it is safe to use for garden and vegetable beds the information below explains what chemicals are used in viance ground contact treated wood for residential use and the results of numerous scientific studies. Many new gardeners and even experienced ones turn to treated lumber when sourcing materials for raised beds due to its added protection against moisture and the associated rot and bug damage.
However i haven t seen any research that suggests the level of the chemicals is significant enough to be of concern for human health. If you want to use a pressure treated wood for your raised beds look for lumber with a label stating it was treated with acq alkaline copper quat. Yes you can use pressure treated lumber for your raised garden beds homeowners ask if it is safe to use treated lumber for garden vegetable beds. The safety of pressure treated wood for garden beds depends on what preservative was used to treat the wood.