A written agreement shields both client and gardener by outlining the expectations, scope of work, payment terms, and procedures for handling unforeseen issues. By insisting on a contract or service agreement, you ensure that the gardener is committed to delivering what has been promised, and you have recourse if standards aren’t met. This document should detail all arrangements, including schedules, responsibilities, renewals, and cancellation policies. Asking about this upfront also gives you a chance to review the terms and request adjustments before any work begins.