1. Help & Advice
  2. Lawn Problems
  3. Moss


Every year, more homeowners complain about moss on their lawn than any other lawn problem. Moss is a non-flowering plant, belonging to a division of the plant kingdom known as the Bryophyta. Mosses can be found in a wide variety of locations, but on lawns they grow when grass growth is slow and the soil is wet, along with shade and damp conditions.

To create a moss free lawn you have to remove or reduce the environment that moss thrives in. The main causes of moss are:

Lawn raking will remove moss, however, unless the cause is tackled, effective moss reduction will not be achieved. At GreenThumb we tackle moss on three fronts:

In many cases just increasing the height of the mower can reduce moss. To tackle moss we will recommend the right course for you, which is likely to include restoring the health of the grass plant, plus Hollow-Tine Aeration and/or Scarification.


GreenThumb Lawn Treatment Services


Thatch is the name given to the ‘matting’ which is made up of the accumulation of stems, roots and leaves intermingled with decaying or partially decayed organic matter. This matting acts like a thatched roof, preventing moisture, oxygen, fertiliser and other nutrients getting to the grass roots where needed. This isn’t good for the lawn, but moss thrives on it.

The following factors lead to the formation of thatch:

  • Leaving clippings on the lawn after mowing
  • Poor aeration and compaction
  • Poor drainage
  • Extremes of alkalinity/acidity