Maintenance contracts: keeping a garden in the condition it was handed over in.

The scope of horticultural work, the frequency of each activity, the manpower deployed, the standard the work is judged against, who supplies consumables and water, and a reporting cycle. Contracts that list activities without frequency and standard are where disputes and decline both begin.

It follows from the design. Lawn, seasonal flowering and clipped hedges are high maintenance; native shrub massing, ground cover and established trees are low. A realistic annual maintenance cost should be estimated at design stage, since it is largely fixed by the planting palette long before the first contract is signed.

Irrigation failure: a source that dries up, a system that is not repaired, or watering frequency that quietly reduces. Soil exhaustion and unchecked pest problems follow. Almost all of it is visible in a maintenance report before it is visible on site, which is the argument for structured reporting.

Frequently yes, and on large campuses it is often the intended reuse route. The water quality must be suitable for irrigation, salinity and sodium in particular: and monitored, because unsuitable water degrades soil structure over a season or two and the damage shows in the planting long after the cause started.

That has to be stated explicitly. Routine gap filling and seasonal replanting are commonly included up to a defined extent; large-scale replacement after drought, flooding, vandalism or disease is usually treated separately. Leaving this ambiguous is the most frequent source of friction in maintenance contracts.

Against the schedule, with a periodic report covering activities completed, irrigation status, plant health observations, replacements made and issues raised, supported by photographs. Reviewing that record monthly is more effective than an annual walk-through, because horticultural decline is much cheaper to reverse early.