Gardeners are being cautioned against a common mistake when tackling moss in their lawns, as an expert reveals the best methods for removal without causing long-term damage.
The Moss Problem
Peter Dowdall, known as The Irish Gardener, has noted a surge in questions about moss removal. Moss thrives in the damp, warm climates of the UK and Ireland, making it a persistent issue for many homeowners. As spring progresses, many are eager to address moss growth, particularly after mowing, but Dowdall warns against reaching for quick-fix chemical products.
Avoid Chemical Treatments
Dowdall advises against using sulphate iron-based moss killers commonly found in garden centres. He explains: "What I do like to avoid, most moss killing or moss treatment products that you get in garden centres are based on sulphate iron. I don't like to use sulfated iron in the treatment of moss because of what it does. It does turn the moss black and kills it, but it works by acidifying the soil so it decreases the PH of the soil, and what that does is it creates the ideal conditions for moss to come back because moss likes a low PH."
Underlying Soil Issues
Moss is often a symptom of deeper soil problems, such as compaction, which is common in new-build properties. Compacted soil leads to poor drainage, creating an ideal environment for moss. Dowdall recommends a two-step approach: scarifying and aeration. Scarifying involves mechanically raking the lawn to remove moss and thatch, while aeration creates small holes in the top two inches of soil to improve drainage. Adding grit or sand to these holes can further enhance drainage.
Annual Maintenance Required
Dowdall notes that this process needs to be repeated annually to maintain a moss-free lawn. However, he questions whether a completely weed-free lawn is necessary. With over thirty years of experience, he highlights that moss offers benefits such as air purification. He suggests that our desire for moss-free lawns may be driven by marketing, adding: "We are giving ourselves hours of more work every year, days more work every year, and really, if the lawn is just something that you are happy to look out on and for it to be green, maybe moss isn't a huge problem, and maybe have a moss lawn and get rid of the grass!"
Ultimately, Dowdall advocates for an ecologically sound approach, avoiding chemicals and embracing natural methods for lawn care.
