Watering
Water gardens early in the morning to reduce evaporation. Morning is generally better than evenings because watering in the evenings leaves water on the plants overnight, which can encourage fungal diseases. Watering on windy days is not recommended - wind drift will cause significant waste.
Give garden beds a good, deep soaking every few days rather than a little every day to encourage plants to develop a good, strong root system.
Make sure all taps and hose fittings do not leak.
Sweep paths and driveways; don’t hose them. Use the collected litter to start a compost heap.
Install automatic shut-off nozzles on hoses rather than leaving them running.
Remember more plants are killed in the garden through over-watering than under-watering. And excessive watering creates work by causing excessive plant growth, which means more pruning and trimming, and encouraging weeds.