While there is scientific consensus that it is safe to use for garden 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.
Treated lumber for raised garden bed.
Pressure treated lumber is used for fence posts garden beds decking playground equipment and many other structures that are either partially below ground or have significant exposure to the elements.
The safety of pressure treated lumber for raised bed gardens has been examined by several researchers.
With this in mind here are a few common faqs regarding wood used for raised garden beds.
In 2003 the environmental protection agency epa banned the use of lumber with added chromate copper arsenate cca due to the copper and arsenic content.
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.
Why would it not be safe.
If you already have raised beds made of treated wood you needn t panic.
There is no simple answer to this question.
Homeowners ask if it is safe to use treated lumber for garden beds.
Can you use treated wood for raised beds.
The concern is that the chemicals that are used to treat the lumber can leach into the soil.
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.
Cca treated wood should not be used for garden beds says the vermont department of health.