Questions about anchoring found trellis
Hello, all. I posted this on the Garden Junk forum, but so far I've had no takers. Since the trellises are intended for roses, I hope someone here may be able to give some advice.
This is my first post here, though I've been reading comments by gardenweb folks for a few years now. My neighbor just discarded what I assume was an outdoor bench, and I quickly snagged the pieces to make into trellises. I'm unsure how to secure them for the best stability and longevity. I've been considering driving rebar into the ground on either side, possibly sliding conduit over that and attaching it to the trellises with conduit straps. Would that be enough support? The wood is really heavy, so I was thinking I'd lean them against the house. Do I need to secure them in some way at the top? And should I bury them or keep them elevated in some way? Any feedback would be very much appreciated!
Here is a link that might be useful: Photo