How much to water? A significant number of garden plants are drought tolerant and, even in drought conditions, will not need additional watering once established. You might think of old abandoned homesteads in the bush where established plants have survived for decades. With your existing plants we suggest you experiment with watering less and then not at all and observe them for signs of stress, including wilting and leaf fall.
Think about what this means for manual and automatic watering systems. Does your entire garden need watering? Can you zone plants that need more or less water into areas so you can focus watering on the areas that really need it?
If you have plants that need more water as soon as the weather warms up could they be moved to a cooler area or protected from drying winds? Could they be replaced with drought tolerant plants this autumn that will have a similar appearance and style?
Accepted wisdom is you should not water too often. Giving the lawn a proper drink, less often, encourages deeper root growth and means your grass will be more able to withstand heat stress and dry periods.
Most people overestimate how much water their lawn needs. Grass is shallow rooted and rarely extends more than 25mm into the soil. Put more water than this on your soil and it's not helping your lawn or your water bill. Lawn does not need to be watered again until the soil dries out.
the beauty of buzzing meadows is that the wildflowers and clovers actually extend deeper into the soil allow for a far more drought tolerant situation.