Scarifying a garden lawn
Lawns over time build up a layer of thatch. Thatch is a mixture of dead and decaying organic matter which lies on top of the root zone. To read all about thatch see out blog post here.
A small layer of thatch, half an inch or less can be beneficial in your lawn. Too much thatch, however, will result in a thin, weak and poor quality lawn because the grass plant will be inhibited from taking up vital moisture and nutrients. Thatch produces a spongy feel underfoot to varying degrees
Lawns need to be scarified on a regular basis, little and often is always best. Scarifying will remove thatch and prevent a future build-up. When scarifying your lawn you will also get the benefit of additional aeration, this is helpful as it will improve drainage and air movement.
Raking your lawn, sufficiently removes low levels of surface thatch. However if you have a large thatch build up we would recommend hiring a scarifying machine, you will get much better results.
Be warned if you have a lawn with a very high content of thatch, you will likely remove a huge amount of debris. The results can be quite shocking if you are not prepared. Scarification is quite a stressful process for a lawn so it’s important to carry this action out in the spring or autumn when the grass is growing.
Once you have scarified your lawn it will be invigorated, this is an ideal time to feed, overseed and top dress to encourage the lawn to thicken and become strong and healthy ready for the season ahead.
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