Hi guys, I built a raised vegetable bed 400mm high and 4.0m length and 1.2m with treated pine timber H4 (CCA). I will plant a avocado tree and some vegetables.
I didn't know the CCA treated pine is suitable for vegetable bed as it has arsenic. What's my option to fix it?
- Replace it with other timber suitable for vegetable garden like Sienna Treated Pine?
- Line inside of the bed with builders plastic? Is it gonna be durable and safe for long term?