In addition, combustion, for example due to a cutting height that is too short, can be a cause. In particular, the last mowing before the winter should not be done too short, because the lawn may then enter the winter with bare spots. Even during prolonged drought it is better not to mow too short. The mowing season starts about mid-April and ends at the end of October, depending somewhat on weather conditions.
Depending on the grass types in the lawn, the cutting height is between 3.5 cm (spring) and 5 cm in length. Some grass mixtures tolerate a shorter cutting length, for example between 2.5 and 4 cm. The mower’s blades must be sharp to avoid frayed edges or even pulling out the grass plants. The mowing frequency depends on the growth rate of the grass, and is usually between 1 or 2 x per week. During prolonged drought, there may be more time between mowings. If it is mowed less than twice a week, it is better to clear the clippings to prevent thatch of the turf and suffocation of the grass.
If moss or a thatch layer is already present, it can be removed by scarifying. The plant remains are ‘combed off’ from the lawn. The grass roots in the top layer of the mat are cut, and more air can enter. Scarifying is best done in spring, in February or March when the weather is dry. Cutting the grass roots stimulates (re) growth, and the grass benefits the most from this in spring.
Prick rolling is another method of aerating the soil. This can be done several times a year, for example in the spring and autumn. After scarifying or prick rolling, a dressing can be applied in the form of a mixture of compost and (fine) humus. This mixture sinks into the new air channels and keeps the soil airy for a longer period of time. On heavy clay it is better to use a mixture of sharp sand and humus to make the soil leaner and more airy.
- care and maintenance