The focus during the cold winter months of November and December is to keep the lawn free of winter debris and to do any soil pH adjustments which maybe needed. Control of moss can also be carried out to help keep any moss issue at bay.
It is also beneficial to keep an eye on the grass for any signs of fungal infection and keeping it tidy. Leaves and debris left on the lawn, if left, can kill the grass underneath.
The grass will be slowing down growth, but a high potassium fertiliser can be applied if needed. It is also important to keep any disturbance of the grass to a minimum, so aggressive cultural treatments such as scarification should be avoided in the winter because the grass is unable to recover quickly due to the low light levels and temperatures.
Information about Regular Treatment 5
Main benefits of the winter lawn treatment
- Check up of the grass and tidy the lawn.
- Conduct any pH adjustments, if necessary.
- Control of moss.
- Keeping potassium levels topped up.
- Help toughen the grass during the winter months.
Disadvantages of the fifth lawn treatment
- The moss control treatment will turn any areas containing moss black, which can be a visually striking, but is quite normal.
Recommended time of year for application



Treatment 5 is applied in November or December. However, the exact time will depend on the local weather conditions and the date of the previous treatments.
Weather conditions needed for application
Treatment 5 can be applied in nearly all safe working weather conditions, as long as the lawn is not flooded or covered with snow.
Lawn preparation
There is no preparation needed before the treatment can be applied, although it would be beneficial if all the leaves are removed from the lawn beforehand. This can be done as part of my service though if the leaf coverage is not too great.
Treatment waste
None of the regular treatments produce any waste that the customer needs to dispose of.
Lawn aftercare
If the moss is thick on your lawn, then once it has been turned black it can be raked out.
You can use the lawn after just a couple of hours of treatment application.
You can mow the lawn the next day, if conditions allow.
Additional recommended treatments
If the weather and ground conditions are favourable a mid-winter aeration treatment can be carried out. Aerating during the winter means that the soil can recover and relax. All ready for spring growth.
Lawn care articles about treatment 5
Here are the most recent blog posts which refer to the fifth treatment of the year:
- Leatherjackets in your lawn? Follow these steps …
- Question: How to keep moss away in Scotland?
- Leatherjacket Lawn Pests – The Complete Guide
- A winter visit to RHS Rosemoor
- Will frost harm my lawn?
- 7 tips for autumn lawn care
- Mowing your lawn in the winter
- How soil temperature affects grass growth
- Yellow club fungus (Clavulinopsis helvola)
- Question: Fertilisation after scarifying?