Is it okay that the landscaper changed something from the plans?

A contractor should only change the design if you’ve approved it in writing. There are valid reasons to adjust in the field—unexpected drainage issues, unmarked utilities, or clearance requirements—but those changes require documentation. A proper process includes a clear explanation, a quick sketch showing the change, and a signed change order that covers cost and schedule impacts. If something like the curve of a patio or wall was changed without your approval, ask the contractor to revert to the plan or propose an acceptable alternative at their expense. Going forward, establish a rule: no visible change to geometry, plant placement, or materials happens without your written sign-off. This keeps both sides aligned and avoids the frustration of surprises you never agreed to. Utah contractors familiar with HOA approvals and permitting already follow this process, so expect the same on private projects.