During a prolonged dry period, your lawn can begin to suffer from a lack of moisture even after a few weeks.
Grass plants, much like most of the natural world, need moisture to survive. The onset of drought conditions is usually visible with the lawn turning brown and becoming dormant. In most cases the lawn will normally return to its lush green self after sufficient rain has fallen as long as the root structure is strong and hasn’t completely dried out.
If you are willing and able to irrigate your lawn then it is worth doing properly or not at all. A good general rule for watering lawns is to irrigate to saturation point twice a week, this will ensure a large body of water is penetrating down through the soil profile and to the roots. Taking the ‘little and often’ approach to watering will result in the water applied evaporating before it has had a chance to get down to the rootzone and wasting your time and money. A good guide to ensure you are watering enough is to place a jam jar under the sprinkler spray until there is 2.5-3cm in the jar, you can then move the sprinkler to another part of your lawn and repeat.
If your lawn is damaged from drought then Lawn Control can renovate your lawn in the autumn, rejuvenating the grass with a scarification, aeration and overseed.