Install expandable trellis in patio gap

I need a handyman to install an expandable wooden trellis in a narrow gap on my patio (see photo). One side is a solid wall (easy to fix into), and the other side is a hedge/bushes — open to suggestions on how best to secure it on that side. Requirements: - Securely install the trellis so it stays in place - Ensure it fully covers the gap for privacy - Bring any required tools/fixings Location: ****** Timing: Flexible Please include your approach for fixing it on the hedge side. Thanks!