Best Bio Rasendünger 2025

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Last Updated - 26.07.2025

Best Choice

01

Bio Rasendünger organisch

Beckmann Organic Lawn Fertiliser NPK 9+3+6 Organic 20 kg

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The organic lawn fertiliser is processed into humus in a short time by the soil organisms
Reduces lawn felt
Organic, harmless to humans and animals
Organic lawn fertiliser for all sports and ornamental lawns
Improves and activates tired, leached soil and patchy grass stock

45,74 €
02

Neudorff

Neudorff 00139 Azet lawn fertilizer, 20 kg

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With soil-stimulating micro-organisms
With immediate and long-term effect
Lawn fertiliser - NPK 9 + 3 + 5
Granules - easy to apply by hand or spreader
For naturally dense lawns that displaces moss and weeds

44,99 €
Value for Money

03

NATUREFLOW

Organic Lawn Fertiliser Spring & Summer Test Winner Made in Germany - 10.5 kg for 400 m² - Organic Lawn Fertiliser Organic for Healthy Soil & Rich Green Lawn - Fertiliser Lawn, Spring Fertiliser Lawn

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71% Off
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Test winner and made in Germany - proven quality. Developed by the lawn professionals behind the best-selling lawn seeds from Natureflow Garden. Highest quality standards and sustainable formula for a dense, lush green lawn.
Safe for children and pets - 100% natural. Our fertiliser lawn is free from synthetic chemicals and harmless to children and animals. At the same time, it improves the soil structure and water retention through humus build-up.
Rich green and healthy soil - without chemicals. Our organic lawn fertiliser spring relies on 100% plant ingredients, promotes soil life and strengthens the roots sustainably. Unlike chemical fertilisers, the lawn is not only supplied in the short term, but strengthened in the long term.
More nutrients, less stress for the lawn! The spring fertiliser ensures deep root growth and a permanent green colour, without risky salt pollution as with chemical fertilisers. This keeps your lawn resistant to dryness and diseases.
Gentle and effective - protects soil and the environment. Our organic lawn fertiliser organic releases nutrients slowly and as needed, avoids over-fertilisation and protects groundwater from nitrate pollution. Perfect for environmentally conscious gardening!

14,24 € 49,95 €(71% Off off)
04

NATUREFLOW

Organic Lawn Fertiliser Summer Test Winner Made in Germany - 2.5 kg for 100 m² - Organic Lawn Fertiliser Organic for Healthy Soil & Rich Green Lawn - Fertiliser Lawn, Summer Fertiliser Lawn by

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49% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Test winner and made in Germany - proven quality. Developed by the lawn professionals behind the best-selling lawn seeds from Natureflow Garden. Highest quality standards and sustainable formula for a dense, lush green lawn.
Safe for children and pets - 100% natural. Our fertiliser lawn is free from synthetic chemicals and harmless to children and animals. At the same time, it improves the soil structure and water retention through humus build-up.
Rich green and healthy soil - without chemicals. Our organic summer fertiliser relies on 100% plant ingredients, promotes soil life and strengthens the roots sustainably. Unlike chemical fertilisers, the lawn is not only supplied in the short term, but strengthened in the long term.
More nutrients, less stress for the lawn! The summer fertiliser ensures deep root growth and a permanent green colour, without risky salt pollution as with chemical fertilisers. This keeps your lawn resistant to dryness and diseases.
Gentle and effective - protects soil and the environment. Our organic lawn fertiliser organic releases nutrients slowly and as needed, avoids over-fertilisation and protects groundwater from nitrate pollution. Perfect for environmentally conscious gardening!

14,99 € 29,95 €(49% Off off)
05

Plantura

Plantura Organic Lawn Fertiliser, 3 Months Long-Lasting Effect, Low-Dust Granules, 250 m², 10.5 kg

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The easy to apply granules (by hand or spreader) do not smell; 10.5 kg is enough for an area of 250 m².
Safe for home and garden animals, even children can play on the lawn immediately after fertilisation.
Our organic Plantura organic lawn fertiliser is made from natural raw materials and has an NPK ratio of 5–1–6.
Approved for organic farming, organic and completely does not contain animal raw materials.
3-month long-term effect and optimal supply with all important nutrients, for healthy and lush green lawns without moss in spring and summer.

34,99 €
06

Compo

COMPO Organic Lawn Fertiliser, Natural Fertiliser for Lawns, Natural Instant and Long-Term Effect, Fine Granules, 3 kg, 75 m²

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

For a deep green, durable lawn: organic lawn fertiliser for a naturally balanced, gentle supply of nutrients over several weeks, ideal for young lawn plants, new lawns and turf lawns
Evenly, dust-free distribution of fertiliser grains, optimal root development and nutrient absorption thanks to natural soil organisms, strengthens resistance to diseases
Easy to use: even application of the fertiliser by hand or the spreader on the dry lawn without overlapping the tracks (1-2 days after mowing), then extensive irrigation
Box contents: 1 x Compo organic lawn fertiliser, natural fertiliser for lawns, natural immediate and long-term effect, fine granules, 3 kg, 75 m²
100% natural ingredients, suitable for organic farming according to EU Regulation 2018/848

16,99 €
07

Veddelholzer

Veddelholzer Comparison Winner 2021 Organic Lawn Fertiliser 3 Months Long-Term Effect High Nitrogen Content for Spring and Summer, Low-Dust Granules, Safe for Pets, Long-Term Fertiliser, Lawn Fertiliser

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15% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Rich regeneration: Vital nutrients, enzymes and sugars of our organic lawn fertiliser ensure healthy soil life and revitalise heavily stressed and depleted areas. Thanks to the good nutrient supply and loosening of the soil with the organic lawn fertiliser, water can be stored for longer and prolonged dry periods are survived.
Instructions for use: Our organic fertiliser can be used all year round for new plants and in existing areas from March to October. Approximately 200m² of lawn can be fertilised with 10.5 kg. Spread the bio-fertiliser on the dry lawn 1 to 2 days after mowing. Fertilise in March / April and in June / July about 30 g per square metre. Increase to 3 applications on growing and intensive surfaces. Last application should be no later than the beginning of October.
Extensive effectiveness: Nitrogen is considered to be the engine of lawn growth. The high nitrogen content of our organic lawn fertiliser ensures both short-term and lasting effects: While about 50% of the nitrogen is effective in the first two weeks, the other 50% is released later and enables a balanced fertilisation and long-term effect.
Direct use: Over-fertilisation is impossible with our organic lawn fertiliser. In addition, children and pets can walk on your lawn as soon as the easily water-soluble and pleasantly scented granules have dissolved after watering.
2021 Competition Winner: Test the comparison winner (grade 1.5). Our organic fertiliser made exclusively from vegetable raw materials works and has a lasting effect on all sports and ornamental lawns. The fertiliser symbioses with your soil to form humus in a short time and, by loosening the soil layer, enables the roots to grow quickly and thrive.

25,45 € 29,95 €(15% Off off)
08

Terra Domi

TerraDomi Organic Lawn Fertiliser Spring & Summer 20 kg for 400 m² | For Rich Green, Dense Lawn with up to 6 Months Long-Term Strength | NPK Fertiliser 9+3+6

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Visibly denser, lush green lawn thanks to natural humus construction: organic lawn fertiliser, ideal for leached soils and patchy surfaces and without chemical additives or aggressive active ingredients.
Trust in +25 years of garden expertise: Since 1999, TerraDomi has stood for sophisticated solutions for garden care - for long-lasting quality, effective products and your perfect home.
No risk of over-fertilisation or burning: the lawn only absorbs what it really needs - especially gentle on sensitive soils and easy to use.
Long-lasting effect for up to 6 months: saves time and effort, as the lawn is continuously supplied with nutrients - optimal lawn fertiliser organic spring and summer for garden lovers with little maintenance.
Child and animal friendly thanks to pure organic ingredients: animal-friendly lawn fertiliser for a safe, healthy environment in which family, pets and nature feel equally comfortable.

39,95 €
09

Substral

Substral Naturen Organic Lawn Fertiliser - Organic Fertiliser with Natural Long-Lasting Effect for Sports, Playing and Ornamental Lawn - 20 kg for 500 m²

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Organic lawn fertiliser with 100 % natural ingredients for a beautiful green lawn. Can be used from spring to autumn.
Made from natural raw materials, no risk of burning the lawn, promotes a healthy soil life - suitable for organic farming
Lawn can be walked on immediately after application. Pets and children do not need to be kept away from the lawn
For a strong and dense lawn instead of weeds and moss - up to 3 months gentle fertiliser effect, suitable for all types of lawns.
Dust-free mini granules for optimal application by hand and suitable for commercially available spreaders. Ideal for use with mulching lawnmowers and lawn robots

42,69 €
10

Substral

Substral Naturen Organic Lawn Fertiliser - Organic Fertiliser with Natural Long-Lasting Effect for Sports, Playing and Ornamental Lawns - 10 kg for 250 m²

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16% Off
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Organic lawn fertiliser with 100% natural ingredients for a beautiful green lawn. Can be used from spring to autumn
Made from natural raw materials, no risk of burning the lawn, promotes a healthy soil life - suitable for organic farming.
Lawn can be walked on immediately after application. Pets and children do not need to be kept away from the lawn.
For a strong and dense lawn instead of weeds and moss - up to 3 months gentle fertiliser effect, suitable for all types of lawns.
Dust-free mini granules for optimal application by hand and suitable for commercially available spreaders. Ideal for use with mulching lawnmowers and lawn robots.

24,99 € 29,99 €(16% Off off)