10 Best Organic Fertilisers For Sustainable Gardening

10 Best organic fertilisers for sustainable gardening - May 2025

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Last Updated: 07-05-2025

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Natural Fertiliser for Organic Growers (2 Litres), Approved Organic Plant Food, Concentrate, Chemical Free Safe for Wildlife

Natural Grower

9.8

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Elixir Gardens BioPlant Vegan Animal Free Fertiliser Pellets | Organic, Sustainable & Eco-Friendly Plant-Based Soil Enhancer/Improver | 500g-25kg Weights | 10kg Bag

Elixir Gardens

9.6

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Best value

Powergrow Poultry Manure Organic Vegetable, Flower & Plant Feed, Grey, G60235UK

Powergrow

9.5

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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

9.2

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Renaissance Organic Plant Food - All Purpose Fertilizer for Outdoor & Indoor Gardening - Fertiliser Booster for Houseplants, Vegetables, Fruit Trees, Industrial Crops, Legumes | 5.44 kg Bag

Renaissance

9.1

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Envii Allgrow, Organic Multipurpose Fertiliser Plant Feed - Liquid Outdoor Plant Food, Suitable for All Plants - 1 Litre Makes 330 Litres

envii

8.8

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5% Off

Miracle-Gro Performance Organics Granular Plant Food (Bee, Pet & Child Friendly) Fruit & Veg Plant Food, 1 kg, Grey

Miracle-Gro

8.6

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Grow Chem Fish, Blood & Bone Fertiliser (1KG Bucket) Multi-Purpose – Organic Fertiliser for Plants & Lawns – Nutrient-Packed, Easy-Apply Plant Food for Strong Healthy Produce, Flowers & Lawns

Grow Chem

8.4

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22% Off

Vitax Organic All Purpose Plant Food - Concentrated organic, plant-based feed for all around the garden. 1 Litre - Makes 200 Litres of feed.

Vitax Ltd

8.2

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Florasoul® Organic Indoor Plant Food Certified Vegan Organic Fertiliser, Odorless, Up To 30% More Growth And Flowering, Eco-friendly, Sustainable And Effective, Water-soluble 18 oz/350 Gal

florasoul

8.1

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Natural Fertiliser for Organic Growers (2 Litres), Approved Organic Plant Food, Concentrate, Chemical Free Safe for Wildlife

Elixir Gardens BioPlant Vegan Animal Free Fertiliser Pellets | Organic, Sustainable & Eco-Friendly Plant-Based Soil Enhancer/Improver | 500g-25kg Weights | 10kg Bag

Powergrow Poultry Manure Organic Vegetable, Flower & Plant Feed, Grey, G60235UK

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

Renaissance Organic Plant Food - All Purpose Fertilizer for Outdoor & Indoor Gardening - Fertiliser Booster for Houseplants, Vegetables, Fruit Trees, Industrial Crops, Legumes | 5.44 kg Bag

Envii Allgrow, Organic Multipurpose Fertiliser Plant Feed - Liquid Outdoor Plant Food, Suitable for All Plants - 1 Litre Makes 330 Litres

Miracle-Gro Performance Organics Granular Plant Food (Bee, Pet & Child Friendly) Fruit & Veg Plant Food, 1 kg, Grey

Grow Chem Fish, Blood & Bone Fertiliser (1KG Bucket) Multi-Purpose – Organic Fertiliser for Plants & Lawns – Nutrient-Packed, Easy-Apply Plant Food for Strong Healthy Produce, Flowers & Lawns

Vitax Organic All Purpose Plant Food - Concentrated organic, plant-based feed for all around the garden. 1 Litre - Makes 200 Litres of feed.

Florasoul® Organic Indoor Plant Food Certified Vegan Organic Fertiliser, Odorless, Up To 30% More Growth And Flowering, Eco-friendly, Sustainable And Effective, Water-soluble 18 oz/350 Gal

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