For a vineyard trellis, a guying cable can be used for end posts, with an arrowhead anchor in the ground and Quickvise in the post. See photos below for installation example. Our Penetrator PE46 screw-type ground anchor can also be used to successfully secure a vineyard trellis into the ground.
This customer used our PE18 Penetrator to anchor a trellis to the ground.
These anchors are great!
S.S., Whidbey Island, WA