LifeSimpleAndSweet
Crowing
in my climate untreated wood would last max 2 years. but if you stain it with burnt oil (when you change oil in your car just save it) it will last long. plants will not be affected.
I have wanted to try that! Lumber, sawhorse, paintbrush, and a bucket of old oil. A few coats later, it's supposed to have some real longevity.