This depends on factors such as the type of lawn, the time of year, and lawn health. When choosing a frequency for our lawns, we aim to match the frequency to the growth rate. Aiming to never remove more than 1/3 of the leaf material in a single mowing, this is the optimum result to seek that lawns respond best to in our lawn care. Another reason when deciding on lawn mowing frequencies is the ongoing usability and tidiness of the lawns we live with, and enjoy.
Infrequent lawn mowing often leads to damage being caused to lawns, which can happen for several reasons.
Any serious weed infestations may also be a factor, when regular mowing will assist in control by the removal of seed heads before they have an opportunity to fall back into the ground.
Most lawns being planted these days are high performance hybrid lawns, a feature of these lawns is their ability to repair themselves and green up quickly if damaged, this is achieved with a faster growth rate. This same feature also means they require more frequent lawn mowing and vertimowing than lawns in the past.
In fact, the price of new roll on turf relates directly to the growing aggressiveness of the species, the faster a lawn grows, the more times the turf farm can use the same land to grow another batch of turf, equalling cheaper turf. This can be seen in the price difference between two of Australia’s most popular turf species, where very aggressive Wintergreen Couch Lawn is usually half the price of less aggressive Sir Walter Soft Leaf Buffalo.
For most modern lawns in good health, a regime of two weekly cutting in Summer and four weekly cutting in Winter is the correct lawn mowing frequency to maintain a lawn which is green and in good health, with the possibility of lawn thatching being kept at a minimum.
Regular mowing also encourages the tillering effect in lawns, where less runners and more green leaves are produced, resulting in a greener softer lawn.