Vertimowing is a method of lawn rejuventation that dethatches above and below the soil level of the lawn. This is necessary because, over time, lawns can become matted with runners and waste matter and this adversely affects the health of the lawn.
Specialized machinery is used in the process of vertimowing as the grass stolons and rhizomes are very tough. It is normally performed in spring/summer to allow the lawn maximum recovery time before the cool of autumn when grass growth slows or stops altogether.
With adequate fertilizing, soil wetting and watering, the lawn can be expected to need mowing again in 4 weeks. Vertimowing can be carried out on most types of lawn but is particularly successful with couch (Cynodon dactylon), such as wintergreen, greenlees park etc, Queensland blue couch (Digitaria didactyla) and kikuyu (Pennisetum clandestinum).
Big Kev uses eco-friendly fertilizer and soil wetter to ensure that your lawn recovers quickly but with little impact on the fragile environment.
Just a word on soil wetter. Soils in Western Australia are mainly sand, each grain of this sand has built up a coating of a wax-like substance over many millenia – mainly due to the detritus from eucalyptus trees. This coating effectively keeps out water – you may have noticed this when water is poured onto sand and it puddles, then trickles away, rather than soaking in. The United Nations recognizes Western Australian soils as being some of the worst in the world for water retention. This is why it is so important to apply soil wetter which contains a form of environmentally friendly detergent that breaks down the waxy coating and allows water penetration. It is important to apply this soil wetter biannually and always after vertimowing to give the recovering lawn a helping hand.