Updated:02 November 2026
Rank 1-23 of the best Autumn Lawn Fertilisers
Our recommendation Price Customer rating
1. Comparison winner
F&G Supplies Proctors Autumn & Winter Lawn Grass Feed, 20 kg
F&G Supplies Proctors Autumn & Winter Lawn Grass Feed, 20 kg
Available immediately
free shipping
  • helps prevent moss growth
  • strengthens root and grass systems during colder months
  • best applied in autumn and winter
Our rating
9,8
very good
2. Best value
Pro-Kleen Autumn Lawn Feed Fertiliser 20kg
Pro-Kleen Autumn Lawn Feed Fertiliser 20kg
Available immediately
free shipping
  • NPK 9-4-10 fertiliser with 4% magnesium oxide supports healthy grass and helps prevent lawn disease
  • Apply in autumn to prepare the lawn for winter and help maintain healthy grass colour in colder weather
  • Apply at 25 g per m²; a 20 kg bag covers up to 800 m²
Our rating
9,6
very good
ICL Sportsmaster 4-12-12 Fertiliser
ICL Sportsmaster 4-12-12 Fertiliser
Available immediately
free shipping
  • A denser lawn can help resist moss growth
  • NPK fertiliser with 4% nitrogen, 12% phosphate and 12% potassium helps strengthen turf and encourage a denser sward
  • Apply in autumn or winter to prepare lawns for seasonal stress
Our rating
9,6
very good
A1 Autumn and Winter Lawn Fertiliser 6-5-10 NPK
A1 Autumn and Winter Lawn Fertiliser 6-5-10 NPK
Available immediately
free shipping
  • Potassium and phosphorus support stronger grass and healthy root and shoot development
  • Apply during autumn and winter to help the lawn withstand cold-weather stress
  • Iron-rich fertiliser helps maintain a deep green lawn
Our rating
9,6
very good
5. Bestseller
Miracle-Gro EverGreen Autumn Lawn Care
Miracle-Gro EverGreen Autumn Lawn Care
Available immediately
free shipping
  • kills moss within 7 days and turns it black before needing removal
  • boosts root and grass strength to withstand winter
  • apply between September and November to prepare lawn for winter
Our rating
9,6
very good
Elixir Gardens Autumn/Winter Fertiliser 3-15-15, 10 kg
Elixir Gardens Autumn/Winter Fertiliser 3-15-15, 10 kg
Available immediately
free shipping
  • promotes grass health by reducing plant stress and strengthening roots during winter
  • encourages strong root and grass growth, reducing likelihood of disease
  • apply from mid-September, repeating every 6-8 weeks until March
Our rating
9,6
very good
200+ purchases last month
A1 Lawn Autumn/Winter Lawn Fertiliser, 20 kg, 6-5-10
A1 Lawn Autumn/Winter Lawn Fertiliser, 20 kg, 6-5-10
Available immediately
free shipping
  • High iron content helps kill moss and makes spring scarifying easier
  • Potassium helps strengthen grass and improve its hardiness, while phosphorus supports healthy roots and shoots
  • Apply from September to November, or until the grass stops growing; water in well if rain is not forecast
Our rating
9,6
very good
Miracle-Gro Evergreen Lawn Food & Weed Control
Miracle-Gro Evergreen Lawn Food & Weed Control
Available immediately
free shipping
  • helps prevent moss formation on the lawn
  • improves root and grass strength for a robust lawn
  • suitable for application during spring and autumn
Our rating
9,6
very good
Miracle-Gro 4-in-1 Autumn Lawn Care, 360 m²
Miracle-Gro 4-in-1 Autumn Lawn Care, 360 m²
Available immediately
free shipping
  • Helps kill and control moss for a healthier, thicker lawn
  • High-potassium fertiliser strengthens grass and encourages deep root growth for winter resilience
  • Apply in September, October or November to prepare the lawn for colder weather
Our rating
9,6
very good
Miracle-Gro Autumn Lawn Food and Moss Control, 360 m²
Miracle-Gro Autumn Lawn Food and Moss Control, 360 m²
Available immediately
free shipping
  • kills moss within 7 days and requires raking out after 2 weeks
  • strengthens roots and toughens grass, enhancing resilience against harsh winter weather
  • use from September to November to prepare lawn for winter
Our rating
9,5
very good
Pro-Kleen Spring and Autumn Lawn Feed 20kg
Pro-Kleen Spring and Autumn Lawn Feed 20kg
Available immediately
free shipping
  • promotes strong roots and vibrant grass
  • ideal for application in spring and autumn
  • contains 6% iron for healthy grass
Our rating
9,5
very good
Dark Green Autumn/Winter Lawn Fertiliser, 2.5 kg
Dark Green Autumn/Winter Lawn Fertiliser, 2.5 kg
Available immediately
free shipping
  • prevents moss from forming
  • fortifies roots and grass for a lush lawn
  • apply between october and march to maintain green lawn year-round
Our rating
9,4
good
GreenCare Autumn Lawn Feed Liquid Fertiliser with Seaweed, 5 L
GreenCare Autumn Lawn Feed Liquid Fertiliser with Seaweed, 5 L
Available immediately
free shipping
  • Supports strong roots and helps grass withstand colder weather
  • Apply in autumn or early winter to prepare the lawn for colder conditions
Our rating
9,3
good
Miracle-Gro Lawn Food, 3.5 kg
Miracle-Gro Lawn Food, 3.5 kg
Available immediately
free shipping
  • kills moss within 7 days and requires raking out after 2 weeks
  • strengthens roots and toughens grass to withstand winter weather
  • apply from September to November for best results
Our rating
9,0
good
Pro-Kleen Autumn Lawn Feed Fertiliser, 2.5kg, NPK 10-5-10 + 2MgO
Pro-Kleen Autumn Lawn Feed Fertiliser, 2.5kg, NPK 10-5-10 + 2MgO
Available immediately
free shipping
  • Potassium-rich fertiliser supports root development and helps grass withstand seasonal stress
  • Apply in autumn to prepare lawns for winter
  • Slow- and fast-release nitrogen provides feeding for up to six weeks
Our rating
9,0
good
Miracle-Gro Autumn Lawn Food & Moss Control Spreader, 80 m²
Miracle-Gro Autumn Lawn Food & Moss Control Spreader, 80 m²
Available immediately
free shipping
  • prevents moss growth within 7 days and requires raking after 2 weeks
  • strengthens roots and toughens grass to withstand harsh winter conditions
  • apply between September and November to prepare lawn for winter
Our rating
8,9
good
Pro-Kleen Spring & Autumn Lawn Feed, 2.5kg, NPK 6-5-11 + 6% Iron
Pro-Kleen Spring & Autumn Lawn Feed, 2.5kg, NPK 6-5-11 + 6% Iron
Available immediately
free shipping
  • contains iron to help control moss
  • supports healthy root and grass development
  • best applied in spring and autumn
Our rating
8,8
good
Miracle-Gro 4-in-1 Autumn Lawn Care, 80m²
Miracle-Gro 4-in-1 Autumn Lawn Care, 80m²
Available immediately
free shipping
  • A high-potassium NPK 6-5-10 formulation strengthens grass and promotes deep root growth for winter resilience
  • Apply in autumn to prepare the lawn for winter
Our rating
8,8
good
Dark Green Autumn/Winter Lawn Fertiliser, 1.25kg
Dark Green Autumn/Winter Lawn Fertiliser, 1.25kg
Available immediately
free shipping
  • Nitrogen, phosphorus, potassium and magnesium provide nutrients to support healthy, green grass
  • Phased-release nitrogen continues feeding the lawn after the initial nutrient boost
Our rating
8,8
good
Miracle-Gro Autumn Lawn Food and Moss Control, 80 m²
Miracle-Gro Autumn Lawn Food and Moss Control, 80 m²
Available immediately
free shipping
  • kills moss within 7 days with visible blackening as it dies
  • strengthens roots and toughens grass for resilience against winter
  • apply from September to November to prepare lawn for winter
Our rating
8,6
good
Green Force Autumn Lawn 3kg
Green Force Autumn Lawn 3kg
Coming soon
free shipping
  • Prevents moss growth during winter
  • Strengthens roots and grass against wear and tear
  • Suitable for use in autumn
Our rating
8,5
good
Miracle-Gro 4-in-1 Autumn Lawn Care for 80 m²
Miracle-Gro 4-in-1 Autumn Lawn Care for 80 m²
Available immediately
free shipping
  • Helps kill and control moss, allowing the lawn to grow thicker
  • NPK 6-5-10 fertiliser supports grass growth and encourages deep roots for winter resilience
  • Apply in September, October or November
Our rating
8,5
good
Elixir Gardens Winter Lawn Fertiliser 1kg
Elixir Gardens Winter Lawn Fertiliser 1kg
Available immediately
free shipping
  • aids in preventing moss by strengthening the turf
  • strengthens roots and grass with 5% calcium and trace elements
  • best applied in mid-september and then every 6-8 weeks
Our rating
7,5
satisfactory

Similar Autumn Lawn Fertiliser comparisons

Autumn Lawn Fertilisers buying guide: How to choose the right product from the above Autumn Lawn Fertilisers test or comparison

Understanding Autumn Lawn Fertiliser: Why It’s Essential for Your Garden

The Importance of Autumn Care for Your Lawn

As summer fades and autumn arrives, our lawns transition into a different phase of growth. During this period, the grass prepares itself for winter, making it crucial to provide it with the right nutrients. Autumn lawn fertiliser is specifically formulated to support this transition, enhancing root development and improving the overall resilience of your lawn against cold weather. By investing in an autumn fertiliser, we are essentially setting up our grass for a stronger, healthier recovery come spring.

Benefits of Autumn Fertilisation

Using a dedicated autumn fertiliser boosts essential nutrients like potassium, which helps strengthen the plant’s cell structure, aiding in frost resistance. Additionally, it enhances the grass’s ability to absorb moisture efficiently, reducing the risk of drought. A well-fertilised lawn not only thrives better during the colder months but also sets a lush foundation for rapid growth once spring returns.

Key Ingredients to Look for in Autumn Lawn Fertiliser

Understanding Nutritional Needs

When selecting an autumn lawn fertiliser, we must consider its nutrient composition. Key ingredients include a higher level of potassium compared to nitrogen, which is vital for winter hardiness. A balanced fertiliser might contain ratios like 5-10-20, where the middle number indicates the amount of potassium, supporting root growth while minimising excessive top growth.

Slow-Release Formulas

Another valuable feature in autumn fertilisers is the inclusion of slow-release components. These allow for nutrients to be gradually absorbed over time, providing a steady supply without overwhelming the grass. Slow-release options not only improve nutrient efficiency but also help maintain a healthier lawn through steady, gradual nourishment.

How to Apply Autumn Lawn Fertiliser: Step-by-Step Guide

Preparing for Application

Before applying fertiliser, it’s important to prepare your lawn. Start by mowing the grass to a suitable height, ideally around 2.5 inches. This helps ensure that the fertiliser reaches the soil more effectively. Ideally, we should water the lawn a day prior to application to dampen the soil, allowing for better nutrient absorption.

Applying the Fertiliser Evenly

When it comes to application, we recommend using a spreader to ensure an even distribution of the fertiliser. For an average-sized garden, 2 to 4 pounds of fertiliser per 1,000 square feet is often adequate, but be sure to check the specific instructions on the product. Walk at a steady pace, overlapping slightly to avoid any missed patches, and aim for a uniform layer across the lawn.

Watering After Application

After applying the fertiliser, it’s crucial to water the lawn again. This helps activate the nutrients and wash them into the soil. A light watering is usually sufficient, ensuring the granules dissolve and are properly absorbed by the grass roots.

Choosing the Right Autumn Lawn Fertiliser for Your Grass Type

Identifying Your Grass Type

Different grass types have varying nutrient requirements, so knowing yours can significantly enhance the effectiveness of your autumn fertilisation. Cool-season grasses, such as fescues and bluegrasses, thrive in northern climates and typically benefit from higher potassium levels in autumn, supporting their growth as they prepare for winter.

Tailoring Fertiliser to Grass Needs

For warm-season grasses like Bermuda or Zoysia, which are more common in southern areas, it’s essential to switch to a suitable fertiliser as they prepare for dormancy. These grasses generally need fertilisation slightly earlier in the season, typically in late summer to early autumn, ensuring proper nutrient uptake before they enter their winter rest.

Timing Your Application: When to Use Autumn Lawn Fertiliser for Best Results

Optimal Application Window

Timing is crucial when applying autumn lawn fertiliser. The best window is usually between late September and mid-November. During this period, temperatures start to drop, and grass growth slows, making it an ideal time to provide your lawn with essential nutrients without stimulating excessive top growth.

Monitoring Weather Conditions

Keep an eye on the weather as well. Applying fertiliser just before rainfall can help with nutrient absorption but avoid application if heavy rain is expected, as this can wash away the fertiliser before it’s absorbed. Aim for a dry day where light watering following the application is manageable, maximising the uptake of nutrients without losing them to runoff.

Table of contents
  1. Understanding Autumn Lawn Fertiliser: Why It’s Essential for Your Garden
  2. Key Ingredients to Look for in Autumn Lawn Fertiliser
  3. How to Apply Autumn Lawn Fertiliser: Step-by-Step Guide
  4. Choosing the Right Autumn Lawn Fertiliser for Your Grass Type
  5. Timing Your Application: When to Use Autumn Lawn Fertiliser for Best Results

Overview

1. Comparison winner
F&G Supplies Proctors Autumn & Winter Lawn Grass Feed, 20 kg
Our rating
9,8
very good
F&G Supplies Proctors Autumn & Winter Lawn Grass Feed, 20 kgAvailable immediately
2. Best value
Pro-Kleen Autumn Lawn Feed Fertiliser 20kg
Our rating
9,6
very good
Pro-Kleen Autumn Lawn Feed Fertiliser 20kgAvailable immediately
ICL Sportsmaster 4-12-12 Fertiliser
Our rating
9,6
very good
ICL Sportsmaster 4-12-12 FertiliserAvailable immediately
A1 Autumn and Winter Lawn Fertiliser 6-5-10 NPK
Our rating
9,6
very good
A1 Autumn and Winter Lawn Fertiliser 6-5-10 NPKAvailable immediately
5. Bestseller
Miracle-Gro EverGreen Autumn Lawn Care
Our rating
9,6
very good
Miracle-Gro EverGreen Autumn Lawn CareAvailable immediately
Elixir Gardens Autumn/Winter Fertiliser 3-15-15, 10 kg
Our rating
9,6
very good
Elixir Gardens Autumn/Winter Fertiliser 3-15-15, 10 kgAvailable immediately
A1 Lawn Autumn/Winter Lawn Fertiliser, 20 kg, 6-5-10
Our rating
9,6
very good
A1 Lawn Autumn/Winter Lawn Fertiliser, 20 kg, 6-5-10Available immediately
Miracle-Gro Evergreen Lawn Food & Weed Control
Our rating
9,6
very good
Miracle-Gro Evergreen Lawn Food & Weed ControlAvailable immediately
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