Best Winter Multi-Purpose Fertilisers of 2025

Toby Butcher Avatar
Toby Butcher
Last Updated: 2 Feb 2025

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Winter Multi-Purpose Fertilisers are a range of products designed to provide plants with the necessary nutrients during the colder months. These fertilisers are suitable for a variety of plants, including trees, shrubs, and lawns. They contain a balanced mix of nutrients that help plants to stay healthy and strong, even in harsh winter conditions. With Winter Multi-Purpose Fertilisers, gardeners can ensure that their plants receive the right amount of nutrients throughout the winter, leading to healthier growth and a more vibrant garden come spring.

At a Glance: Our Top Picks

GREEN24 Autumn and Winter Potassium Fertiliser Cover #TOP 1
GREEN24 Autumn and Winter Potassium Fertiliser
ftb score rating icon 9.8
AMK® Vitax Citrus Tree Winter Fertiliser 200g Cover #TOP 2
AMK® Vitax Citrus Tree Winter Fertiliser 200g
ftb score rating icon 9.7
Dark Green Lawn Fertiliser for Autumn/Winter Cover #TOP 3
Dark Green Lawn Fertiliser for Autumn/Winter
ftb score rating icon 9.5

Top 5 Winter Multi-Purpose Fertilisers

#TOP 1

GREEN24 Autumn and Winter Potassium Fertiliser

HWA25K50K50
GREEN24 Autumn and Winter Potassium Fertiliser Cover
Autumn fertiliser and winter fertiliser - potassium fertiliser, liquid NPK for better winter hardiness of plants (winter protection / frost protection).

GREEN24 Potassium Fertiliser is a professional solution designed to enhance the winter hardiness of your plants. It is rich in potassium, which increases salt concentration in plant cells, boosting frost tolerance and reducing the risk of frost damage. Suitable for all garden and potted plants, this fertiliser supports even frost-tolerant species like oleanders and citrus. With a concentrated formula, just 250 ml can make up to 125 litres of liquid fertiliser, making it both effective and easy to use.

What We Like
Enhances frost tolerance
Suitable for all garden plants
Concentrated formula for efficiency
Includes easy-to-follow instructions

AMK® Vitax Citrus Tree Winter Fertiliser 200g

AMK
100147
AMK® Vitax Citrus Tree Winter Fertiliser 200g Cover
AMK® Vitax Citrus Tree Food Winter Feed Plant Fertiliser Soil Fruit Orange Lemon 200g

The AMK® Citrus Tree Food is designed to support your citrus plants during the winter months. It helps prevent premature leaf fall and discolouration, ensuring your plants remain healthy. The carefully balanced formula maintains growth, so you can enjoy thriving citrus trees. You should apply it monthly between October and March, making it a convenient addition to your gardening routine. Simply mix it with water and apply it when the compost has dried out, promoting strong and vibrant plants.

What We Like
Prevents leaf fall
Supports healthy growth
Easy monthly application
Promotes vibrant plants

Dark Green Lawn Fertiliser for Autumn/Winter

fertiliser-autumn-9.5kg
Winter/Autumn
9.5kg (380m²)
Dark Green Lawn Fertiliser for Autumn/Winter Cover
Dark Green Lawn Fertiliser - Non Hazardous - Autumn/Winter Grass Feed - Fact Acting & Long Lasting - Child and Pet Friendly Turf Thickener - Garden Lawncare Guy

The Garden Lawncare Guy Fertiliser is designed to green up your lawn effortlessly. It is packed with essential nutrients like nitrogen, potassium, phosphorus, and magnesium, ensuring your grass grows thicker and greener. Safety is a priority, as this lawn feed is non-toxic, making it suitable for gardens frequented by children and pets. With its fast and slow-release granules, this product feeds your grass for up to three months, providing a quick boost while ensuring continuous nourishment.

What We Like
Safe for children and pets
Long-lasting up to 12 weeks
No brown stains on surfaces
Supports thick, green grass
#TOP 4

Wolvercroft Vitax Citrus Winter Feed 200g x 2

200g
Wolvercroft Vitax Citrus Winter Feed 200g x 2 Cover
Wolvercroft Garden Centre Vitax Citrus Winter Feed (200g) X 2

The Vitax Citrus Winter Feed is designed to provide essential maintenance for your plants during the Autumn and Winter months. By using this feed monthly from October to March, you help prevent premature leaf fall and discolouration, ensuring your plants remain healthy. It's carefully balanced to maintain growth, which is crucial when temperatures drop. This product makes it easy for you to care for your citrus plants, keeping them vibrant and robust throughout the colder season.

What We Like
Prevents leaf fall
Maintains healthy growth
Easy monthly application
Suitable for winter months
#TOP 5

Vitax Citrus Winter Feed for Growth

Vitax Citrus Winter Feed for Growth Cover
Vitax Citrus Winter Feed (200g) X 4

The Vitax Citrus Winter Feed is an essential maintenance feed designed for the Autumn and Winter months. It helps you prevent premature leaf fall and discolouration, ensuring that your citrus plants remain healthy and vibrant during colder weather. This carefully balanced formula maintains growth, allowing you to enjoy flourishing plants even in less favourable conditions. By applying this feed monthly between October and March, you can easily support your plants’ needs throughout the winter season.

What We Like
Prevents leaf fall
Maintains plant health
Easy monthly application
Supports winter growth
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a good fertilizer for the winter?

Cool-season grass will benefit from fall feeding. You can use a winterizer or another fertilizer as long as it contains both nitrogen and potassium. Or supplement your lawn throughout the season with potassium from organic sources.

2. Should fertilizer be applied in winter?

Don't fertilize too early! During the winter months, grass is likely dormant if you haven't been irrigating. When you fertilize too early in spring—meaning it's still winter— you're providing nutrients before the grass has broken dormancy. It won't be able to immediately take advantage of the nutrients you provided.

3. Is it OK to fertilize lawn in winter?

After you've opened up your lawn, it's a good time to fertilize with Scotts® Turf Builder® WinterGuard® Fall Lawn Food. Fertilizing your lawn gives your grass the essential nutrients it needs as it prepares for winter. The grass roots absorb and store the nutrients during the winter months.

4. When should I apply winter fertilizer?

The best time to apply a winterizer is after the grass stops growing in the fall, while it is still green on top and active below the surface. In most parts of the North, this will be sometime in mid-late November, or even early December.

Editor's Notes

During our winter multi-purpose fertiliser research, we found 7 winter multi-purpose fertiliser products and shortlisted 5 quality products. We collected and analyzed 10,754 customer reviews through our big data system to write the winter multi-purpose fertilisers list. We found that most customers choose winter multi-purpose fertilisers with an average price of £17.78.

The winter multi-purpose fertilisers are available for purchase. We have researched hundreds of brands and picked the top brands of winter multi-purpose fertilisers, including GREEN24, AMK, Garden Lawncare Guy, Vitax Ltd, Wolvercroft Garden Centre. The seller of top 1 product has received honest feedback from 148 consumers with an average rating of 4.9.

Written by
Toby Butcher Avatar

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.