>>25766151) Post a scheme & photo of materials.
2) I, probably just like people form most of the world, do not understand the american slang for timber.
> wood finish that won't hurt plantsI think most commercial wood finishes are fine (once they dry). I use some drying oil finish for outdoor wooden constructions such as trellis for grapes.
The only ones I'd avoid are those used for phone/electricity poles and railroad ties, but I believe these are not sold to individuals.
> wind protectionCan't you just form an 'L' from your trellis?
If not, add a diagonal wooden struts (perpendicularly to your trellis) or tie it with two sturdy strings.
