Updated:12 October 2026
Rank 1-13 of the best Guano Fertilisers
Our recommendation Price Customer rating
1. Comparison winner
Guanokalong Bat Guano Fertilizer 3kg
Guanokalong Bat Guano Fertilizer 3kg
Available immediately
free shipping
  • made from 100% natural bat guano
  • rich in nutrients including nitrogen, phosphorus, and potassium
  • decreases fungal infections
Our rating
9,6
very good
VitaLink Bat Guano Organic Fertilizer 3.5kg
VitaLink Bat Guano Organic Fertilizer 3.5kg
Available immediately
free shipping
  • 100% organic
  • rich in nutrients including nitrogen, phosphorus and potassium
  • reduces fungal infections
Our rating
9,6
very good
3. Best value
Bioflower Organic Guano Fertiliser, 2 kg
Bioflower Organic Guano Fertiliser, 2 kg
Available immediately
free shipping
  • made from 100% organic animal and vegetable substances
  • rich in essential nutrients like nitrogen, phosphorus, and potassium
  • helps reduce fungal infections in plants
Our rating
9,6
very good
Guanokalong Bat Guano Fertiliser 3kg
Guanokalong Bat Guano Fertiliser 3kg
Available immediately
free shipping
  • 100% organic
  • rich in nutrients: contains nitrogen, phosphorus and potassium
  • helps reduce fungal infections
Our rating
9,6
very good
No reviews yet
5. Bestseller
Compo Guano Liquid 1300ml m231596
Compo Guano Liquid 1300ml m231596
Available immediately
free shipping
  • made from 100% organic marine bird excrement
  • rich in essential nutrients such as nitrogen, phosphorus and potassium
  • contains compounds that help reduce fungal infections
Our rating
9,4
good
Guanokalong Bat Guano Soil Fertilizer (10kg)
Guanokalong Bat Guano Soil Fertilizer (10kg)
Available immediately
free shipping
  • made from 100% organic ingredients
  • rich in nutrients including nitrogen, phosphorus and potassium
  • helps reduce fungal infections in plants
Our rating
9,3
good
No reviews yet
Guano Kalong Organic Fertilizer 1Kg
Guano Kalong Organic Fertilizer 1Kg
Available immediately
free shipping
  • 100% organic bat guano
  • rich in nutrients including nitrogen, phosphorous, and potassium
  • reduces fungal infections
Our rating
9,1
good
No reviews yet
CULTIVERS Organic Fertiliser with Guano, 5kg
CULTIVERS Organic Fertiliser with Guano, 5kg
Available in a few days
free shipping
  • made from 100% organic materials
  • rich in nutrients including nitrogen, phosphorus, and potassium
  • helps to reduce fungal infections in plants
Our rating
9,0
good
Fertiberia Guano Liquid Fertiliser 1L
Fertiberia Guano Liquid Fertiliser 1L
Available immediately
free shipping
  • made from 100% organic materials
  • rich in essential nutrients: nitrogen, phosphorus, potassium
  • strengthens plants against fungal infections
Our rating
8,9
good
No reviews yet
Guano Kalong BatBoost K2 Fertilizer, 1L
Guano Kalong BatBoost K2 Fertilizer, 1L
Available immediately
free shipping
  • 100% organic liquid fertiliser
  • rich in nutrients such as nitrogen, phosphorus and potassium
  • reduces fungal infections in plants
Our rating
8,8
good
KedBrok AnniBat Bat Guano Fertilizer, Organic, 1kg
KedBrok AnniBat Bat Guano Fertilizer, Organic, 1kg
Available in a few days
free shipping
  • made from 100% natural ingredients
  • rich in nutrients including nitrogen, phosphorus and potassium
  • helps to reduce fungal infections in plants
Our rating
8,8
good
Guanokalong Kalong Bloom Liquid Fertiliser 1L
Guanokalong Kalong Bloom Liquid Fertiliser 1L
Available immediately
free shipping
  • 100% organic
  • rich in nutrients including nitrogen, phosphorus, and potassium
  • reduces fungal infections
Our rating
8,6
good
Guanokalong Guano Black Pellets Fertiliser
Guanokalong Guano Black Pellets Fertiliser
Available immediately
free shipping
  • made from 100% organic ingredients
  • rich in nutrients including nitrogen, phosphorus, and potassium
  • reduces fungal infections
Our rating
8,5
good
No reviews yet

Similar Guano Fertiliser comparisons

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

Understanding Guano Fertiliser: What It Is and How It Works

What is Guano Fertiliser?

Guano fertiliser primarily consists of accumulated excrement from seabirds and bats. This natural resource has been used for centuries as a nutrient-rich soil amendment. It is high in nitrogen, phosphorus, and potassium, key elements that promote plant growth. The nutrients in guano are released slowly into the soil, allowing plants to absorb them over time, which prevents the risk of nutrient burn often associated with synthetic fertilisers.

How Does Guano Work?

When you apply guano to the soil, it starts breaking down thanks to the activity of soil microorganisms. This gradual process not only makes nutrients available to the plants but also improves soil structure and fertility. The humus formed during the decomposition of organic materials creates a positive environment for beneficial insects and earthworms, fostering a robust ecosystem in your garden.

Benefits of Using Guano Fertiliser in Your Garden

Nutrient-Rich Composition

The primary benefit of guano fertiliser is its rich nutrient profile. With high levels of essential nutrients, it supports vigorous growth, enhancing the overall health of plants. This can lead to stronger flowers and larger fruit, making your garden not only more beautiful but also more productive.

Sustainable and Natural

Using guano is an environmentally friendly choice. As a natural product, it’s biodegradable and contributes to the sustainable cycle of soil health. Choosing guano means you’re opting for a more organic approach to gardening, reducing your reliance on chemically synthesized fertilisers.

Improved Soil Health

Guano not only nourishes your plants but also enriches the soil. It aids in moisture retention and promotes the activity of beneficial microbes. The organic matter in guano can improve soil aeration, drainage, and structure, thus enhancing the overall ecosystem of your garden.

Choosing the Right Type of Guano Fertiliser for Your Plants

Types of Guano Available

When selecting guano fertiliser, it’s important to consider the source, as it can vary widely. Seabird guano is particularly high in nitrogen and phosphorus, making it ideal for flowering plants and vegetables. Bat guano, on the other hand, is often richer in potassium, which is excellent for fruiting plants and root development. Understanding the specific needs of your plants will guide your choice.

Application Rates and Types

Different types of guano has varying strengths and properties. We recommend checking the product label for specific application rates. Typically, guano can be mixed into the soil at planting time or top-dressed around existing plants. For targeted feeding, you can create a guano tea by dissolving it in water, providing your plants with an instant nutrient boost.

How to Apply Guano Fertiliser Effectively for Maximum Growth

When to Apply

Timing is crucial when applying guano fertiliser. It’s best to apply it during the growing season when plants are actively absorbing nutrients. For most plants, this means early spring and possibly again in mid-summer, depending on your local climate and the specific growth cycle of the plant.

Methods of Application

There are several methods for applying guano. For a slow-release effect, mix it into the soil before planting. For existing plants, sprinkle it around the base and lightly work it into the top layer of soil to avoid disturbing the roots. Alternatively, creating a liquid fertiliser by steeping guano in water can provide a quick nutrient infusion for plants in need.

Frequently Asked Questions About Guano Fertiliser

Is Guano Safe for All Plants?

Yes, guano is generally safe for a wide range of plants. However, it’s always wise to perform a small patch test on a few plants first to ensure they respond positively, especially if you are new to using guano.

How Often Should I Use Guano?

The frequency of application depends on the specific plants and their needs. Generally, we recommend applying guano every 4 to 6 weeks during the active growing season to maintain nutrient availability without overwhelming the plants.

Can I Use Guano with Other Fertilisers?

Absolutely, guano can complement other organic fertilisers. We advise mixing guano with compost or other organic matter to enhance nutrient diversity. Just be mindful not to over-fertilise, which can lead to nutrient imbalances.

Table of contents
  1. Understanding Guano Fertiliser: What It Is and How It Works
  2. Benefits of Using Guano Fertiliser in Your Garden
  3. Choosing the Right Type of Guano Fertiliser for Your Plants
  4. How to Apply Guano Fertiliser Effectively for Maximum Growth
  5. Frequently Asked Questions About Guano Fertiliser

Overview

1. Comparison winner
Guanokalong Bat Guano Fertilizer 3kg
Our rating
9,6
very good
Guanokalong Bat Guano Fertilizer 3kgAvailable immediately
VitaLink Bat Guano Organic Fertilizer 3.5kg
Our rating
9,6
very good
VitaLink Bat Guano Organic Fertilizer 3.5kgAvailable immediately
3. Best value
Bioflower Organic Guano Fertiliser, 2 kg
Our rating
9,6
very good
Bioflower Organic Guano Fertiliser, 2 kgAvailable immediately
Guanokalong Bat Guano Fertiliser 3kg
Our rating
9,6
very good
No reviews yet
Guanokalong Bat Guano Fertiliser 3kgAvailable immediately
5. Bestseller
Compo Guano Liquid 1300ml m231596
Our rating
9,4
good
Compo Guano Liquid 1300ml m231596Available immediately
Guanokalong Bat Guano Soil Fertilizer (10kg)
Our rating
9,3
good
No reviews yet
Guanokalong Bat Guano Soil Fertilizer (10kg)Available immediately
Guano Kalong Organic Fertilizer 1Kg
Our rating
9,1
good
No reviews yet
Guano Kalong Organic Fertilizer 1KgAvailable immediately
CULTIVERS Organic Fertiliser with Guano, 5kg
Our rating
9,0
good
CULTIVERS Organic Fertiliser with Guano, 5kgAvailable in a few days
Our product comparisons are:
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In our tests & comparison tables, we only include products that meet our minimum standards. This ensures that you can find the perfect product for your needs from a wide selection.
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