
End of Season Treatment
Toughen up your lawn during the harsh, cold winter months with an iron-based micronutrient spray that will help to inhibit moss growth
What is the End of Season Treatment?
It is important not to forget caring for your lawn as winter takes hold. TopGrass will provide ongoing moss treatment to the lawn, during any harsh weather conditions so it can transition smoothly into new spring growth. Like the Late Season Treatment, this iron-based micronutrient spray will strengthen and toughen up the lawn during winter months, whilst any new moss growth receives a fresh dose of iron to blacken it and induce dehydration.
The End of Season Treatment is included in these packages


How does our End of Season Treatment work?
As growth remains slow at this time of year, the combination of extra Nitrogen, Phosphorous, Potassium and macro-nutrients are not required - these will be introduced in the Season Starter Treatment. Iron is needed to promote the production of chlorophyll, ensuring a vibrant green colour within the grass plant. Dehydrating the moss in the lawn will prevent the plant from retaining moisture and eradicating the conditions in which it needs to thrive.
There are many potential causes for moss to appear in lawns, including mild and wet winter conditions, excessive shade, compacted soils, poorly drained soils, low soil fertility, high or low soil pH, and poor air circulation. Our Winter Treatment takes a dual course of action in providing extra soil fertility through the micro-nutrients, inhibiting moss encroachment with a fast-acting liquid application.
Our End of Season Treatment formula comprises:
- Iron sulphate to green up the grass plant, and to dehydrate and blacken moss
- Iron is a micro-nutrient that helps to harden and strengthen the grass plant, making it less susceptible to disease and damage during harsh seasonal conditions.
Summary
When? January - February
What? Iron-based micro-nutrient spray.
Why? To dehydrate and blacken new moss growth, harden the grass plant against harsh winter weather, strengthen root structure and improve colour.
Lawn Care Services
Achieve a lush, green, and healthy lawn all year round with our expert lawn care services. Whether you need lawn aeration, scarification, weed control, or seasonal lawn treatments, we provide tailored solutions to enhance the health and appearance of your grass.

Lawn Aeration
Aeration is a key factor in keeping lawns healthy and green, as, like us, your lawn and the soil beneath it needs to breathe.
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Lawn Maintainer
Our lightest renovation package that is tailored to lawns that are already in great condition and only need light scarification and aeration, to help for a stronger, healthier lawn.
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Lawn Improver
This renovation service is for lawns that are struggling with a moss and thatch build-up. A routine lawn scarification service that we recommend customers have every 1-3 years depending on the conditions of their lawn.
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Total Reseed
This complete moss and thatch removal renovation service is our affordable alternative to re-turfing. It is ideal for lawns that are battling thick thatch and heavy moss growth.
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Water Conserver
Increase your lawn's ability to absorb and retain moisture with our Water Conserver treatment
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Red Thread Treatment
Our Red Thread Treatment is specially designed to aid the lawn in a quick recovery following a bout of Red Thread fungal disease.
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Soil Improver Programme
Start boosting the quality of your soil any time of the year with our Soil Improver Programme
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Borders and Beds Fertilisation Programme
Help your shrubs and flowers to thrive with our Borders and Beds Fertilisation Programme
Learn MoreLawn Care Packages
No matter your lawn’s condition or your level of experience with lawn maintenance, we’ve got the perfect package to suit your needs. Our professional lawn care packages offer year-round treatments to keep your grass green, healthy, and weed-free.

Basic Package
Our Basic Package provides the essentials for those who are new to lawn care. This package includes our Annual Lawn Care Programme consisting of fertiliser applications, weed killer applications and moss controls that are seasonally tailored to your lawn's needs.
What's included
- •Spring Season Starter Lawn Care Treatment
- •Summer Early Season Lawn Care Treatment
- •Summer Mid-Season Lawn Care Treatment
- •Autumn Late Season Lawn Care Treatment
- •Winter End-of-Season Lawn Care Treatment

Standard Package
Get everything that's included in our Basic Package, but with an additional lawn aeration. This is a lawn care package that will help to ensure that your lawn is green and healthy throughout the year.
What's included
- •Spring Season Starter Lawn Care Treatment
- •Summer Early Season Lawn Care Treatment
- •Summer Mid-Season Lawn Care Treatment
- •Autumn Late Season Lawn Care Treatment
- •Winter End-of-Season Lawn Care Treatment
Plus
- •Lawn Aeration

Enhanced Package
Our Enhanced Packages are designed for lawns that are struggling with moss and thatch. This package can be tailored based on the level of scarification your lawn requires to remove moss and thatch and get it thriving again. This also includes all the treatments found in our Basic Package.
What's included
- •Spring Season Starter Lawn Care Treatment
- •Summer Early Season Lawn Care Treatment
- •Summer Mid-Season Lawn Care Treatment
- •Autumn Late Season Lawn Care Treatment
- •Winter End-of-Season Lawn Care Treatment
Plus
- •Lawn Maintainer Renovation Service
- •Lawn Improver Renovation Service
- •Total Reseed Renovation Service
Why TopGrass
Top Quality
TopGrass staff use professional lawn care products and equipment to obtain the best results.
Top Value
Our lawn care packages start from as little as £10.42 per month including labour, materials and VAT. It can be cheaper than DIY!
Top Expertise
Beautiful lush, green grass enhances the appearance of your property and can increase its value.
Top Appearance
Beautiful lush, green grass enhances the appearance of your property and can increase its value.
Top Value
Letting us do the work for you will save you days of your own precious time and allow you more time to enjoy your garden.
Top Flexibility
Free lawn treatment quotation with no obligation. We will tell you what your lawn needs to improve it. There is no hard sell, no contract to sign.

What our customers say about us
FAQ's
This treatment is typically applied between January and February, when grass growth is minimal and moss is most likely to thrive.
- Strengthens grass against frost and disease
- Improves lawn colour with iron-induced chlorophyll production
- Suppresses moss by dehydrating it
- Prepares the lawn for healthy spring growth
Absolutely. Iron promotes chlorophyll production, which enhances the lawn’s green colour—even in cold weather.
It won’t eliminate moss entirely, but it blackens and weakens new moss growth, making it easier to control in future treatments.
Pricing for our End of Season Treatment depends on your lawn’s size, with packages starting at just £10.42 per month. Curious about your exact cost? Click here to receive your free personalised quote today!