10 Best Liquid Lawn Fertilizers

10 Best liquid lawn fertilizers - November 2025

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Last Updated: 09-11-2025

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Miracle-Gro Liquid Lawn Feed - 1L Fast Green Concentrate & Ready-to-Use Spray Fertiliser with Topline Card

Topline

9.8

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Green Machine - Liquid Iron Sulphate with Nitrogen Lawn Feed - Grass Fertiliser & Treatment for Lawns - Turns Grass Greener - 1 Litre covers 330m² - Garden Lawncare Guy

Garden Lawncare Guy

9.6

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Best value

Dark Green Liquid Lawn Feed - High Nitrogen Lawn Fertiliser for Greener Grass - Child & Pet Friendly - 330m² 1 Litre

Garden Lawncare Guy

9.5

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Pro-Kleen Lawn Tonic Liquid Iron Sulphate Quality Ferrous Conditioner, Fertiliser, Grass Greener, Turf Hardener | Long-Lasting for a Healthier Looking Garden | Helps Prevent Lawn Disease (5 Litres)

Pro-Kleen

9.2

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The Shropshire Seaweed Company - Certified Organic Plant Food & Lawn Feed - Promotes Growth, Enhances Roots & Soil Health. Sustainably Sourced from Ireland Liquid Organic Seaweed Fertilizer 1L

Sea-Chem

9.1

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envii SeaFeed Xtra – Organic Seaweed Fertiliser, Liquid Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 1 Litre Makes up to 500L

envii

8.8

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4% Off

Miracle-Gro Complete 4-in-1 Lawn treatment, up to 80 m2, Yellow

Miracle-Gro

8.6

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Miracle-Gro EverGreen Fast Green Spray & Feed, Liquid Lawn Food, 1 Litre

Miracle-Gro

8.4

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Lawn Tonic Liquid Iron Sulphate 5L Concentrate Makes 105L Ferrous Conditioner, Fertiliser, Grass Greener Feed, Turf Hardener, Healthier Looking Garden Helps Prevent Lawn Disease (5 Litres)

Pure Source Nutrition

8.2

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29% Off

Miracle-Gro Fast Green Lawn Food Concentrated Liquid, 1 litre concentrate, 100 m² coverage

Miracle-Gro

8.1

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Miracle-Gro Liquid Lawn Feed - 1L Fast Green Concentrate & Ready-to-Use Spray Fertiliser with Topline Card

Green Machine - Liquid Iron Sulphate with Nitrogen Lawn Feed - Grass Fertiliser & Treatment for Lawns - Turns Grass Greener - 1 Litre covers 330m² - Garden Lawncare Guy

Dark Green Liquid Lawn Feed - High Nitrogen Lawn Fertiliser for Greener Grass - Child & Pet Friendly - 330m² 1 Litre

Pro-Kleen Lawn Tonic Liquid Iron Sulphate Quality Ferrous Conditioner, Fertiliser, Grass Greener, Turf Hardener | Long-Lasting for a Healthier Looking Garden | Helps Prevent Lawn Disease (5 Litres)

The Shropshire Seaweed Company - Certified Organic Plant Food & Lawn Feed - Promotes Growth, Enhances Roots & Soil Health. Sustainably Sourced from Ireland Liquid Organic Seaweed Fertilizer 1L

envii SeaFeed Xtra – Organic Seaweed Fertiliser, Liquid Outdoor Plant Food Ideal for all Plants, Lawns, Gardens and House Plants, Rich in Additional Nutrients - 1 Litre Makes up to 500L

Miracle-Gro Complete 4-in-1 Lawn treatment, up to 80 m2, Yellow

Miracle-Gro EverGreen Fast Green Spray & Feed, Liquid Lawn Food, 1 Litre

Lawn Tonic Liquid Iron Sulphate 5L Concentrate Makes 105L Ferrous Conditioner, Fertiliser, Grass Greener Feed, Turf Hardener, Healthier Looking Garden Helps Prevent Lawn Disease (5 Litres)

Miracle-Gro Fast Green Lawn Food Concentrated Liquid, 1 litre concentrate, 100 m² coverage

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