Saw this on Facebook> Bonsai America.
A guy asking for grow box inspiration pics. Steve G. dropped these pixs.
1x6 plastic (PVC) Should last for a bit I would think.
Thoughts?
I think its a good idea if you have the time and desire to make your own training pots.
I think they might be more expensive to make (I think plastic wood is more expensive than normal wood?) but probably worth it for the longevity.
The best thing about them is they won't rot and should last a lot longer than the wood boxes, particularly if you are using wood made for decking or that otherwise has UV protection incorporated into the plastic.
The biggest issue with some plastics is deterioration from the sun and/or weather. Not all plastics can handle that unless they have some UV protection (not sure how that works but its something added to the material when the thing is molded).
They are also heavy duty and less apt to warp than thinner plastic for a large training pot.