GUANOKALONG - bat guano is a rich source of nutrients for your plants
Every Sunday, our blog gives you the opportunity to get to know in detail the best manufacturers of products for indoor and outdoor gardening, whether these are fertilisers, substrates or grow boxes and their equipment, such as various ventilation equipment or, for example, grow lights. In recent weeks, truly big names have been featured on this occasion, including Shogun, Plagron, Bionova and Canna. But what about Guanokalong?

Quite a cumbersome name, isn’t it? However, if you are interested in growing plants in soil, organic growing and ecological agriculture, it conceals specific, 100% biological fertilisers and substrate from the Netherlands, enabling growers to achieve high yields more efficiently by natural means. That is already a compelling reason to focus today on products originating in the Dutch village of Aalten.
Origin and significance of the basic raw materials
In the coastal caves of Java and Madagascar, bats have lived for centuries, feeding on the surrounding insects and fruit in this completely untouched and natural environment. As the years, or rather centuries, passed, their droppings had time to decompose in these places into high-quality compost, representing a rich source of nutrients for plants of all kinds. This brings us to the common feature and the very basis of all Guanokalong products. The brand uses bat droppings, provided they are collected gently under the strict supervision of local authorities, without causing any disturbance to the environment. The company’s workers still use spatulas and oil lamps the old-fashioned way. No machines or noise. The fact that Guanokalong does its work as ecologically as possible is also confirmed by the prestigious Control Union certification. It has held this certification since 2012. From other parts of the world and exclusively from verified suppliers with the appropriate ecological certification come further valuable raw materials important for the production of Guanokalong products. Palm ash comes from Sumatra and seaweed powder comes from Norway.
Now it is time to introduce the individual products. Let us begin with substrates and soil additives.
Guanokalong soil substrate
Guanokalong produces only one, but truly unique biological growing medium called Complete Mix. This substrate is sold in classic 50-litre packs. Why should you try it?
- It offers growers convenient use. This will especially please beginners. It is a pre-mixed soil rich in nutrients thanks to the addition of bat droppings. You do not need to deal with fertilising for at least the first month. In some cases, the nutrients contained in this substrate are sufficient for plants for up to 6 weeks.
- The composition of this soil will also satisfy even the most demanding growers. It consists of two types of peat (Baltic and black), bat guano, biohumus, PG mix and seaweed extract.
- We will continue with the convenience of use. Nutrients are released from this natural growing substrate gradually through the fermentation process, which significantly reduces the risk of so-called plant burn due to over-fertilisation.
- If you store Complete Mix in a dry and dark place, you do not need to deal with any expiry date either.
- If bat droppings do not sound particularly appealing to you, or if you are even concerned about odour, we can assure you that no unpleasant odour really occurs when the substrate is opened or used.
- Natural soil with bat droppings provides plants with additional protection against bacterial infections.
- It stimulates root growth and subsequently the formation of beautiful, large flowers or fruits.
- Complete Mix can be used both for outdoor gardening and for indoor growing in a grow box.
- Using this substrate brings the following results in practice:
- Better taste and overall (organic) quality of the harvest.
- Higher yields.

Guanokalong soil additive
If, for the purpose of organic plant cultivation, you do not want to use unnecessarily many additives, you will probably also be interested in the 100% natural Guanokalong soil additive Lawa Worm Powder. This new product stands out for its ability to improve soil properties to such an extent that it is no longer absolutely necessary to add any further fertilisers! And it does not matter whether you prefer open soil in the garden or whether you would rather use flower pots inside a grow tent.
The final product is a combination of volcanic rock dust and worm castings. In the plant nutrition market, it has become a completely unique product, especially in terms of composition, which naturally goes hand in hand with the final effect:
- Lawa Worm Powder contains a wide range of rare trace elements.
- The composition of this soil additive is naturally rich in minerals as well.
- The product itself stimulates plant growth to a degree usually achieved with the help of many different additives.

Guanokalong plant nutrition
Dry forms of fertilisers
Let us begin with the classic in loose form. By this we mean the universal loose Guanokalong fertilisers, obtained from bat excrement by drying, which you can use throughout the entire growing cycle (for growth and flowering) at home and outdoors (indoor and outdoor). This “super fertiliser” with a low salt index, full of natural ingredients and rich in microelements and enzymes that intensively strengthen the root zone, is sold in 6 packs of different weights, from 0.5 kg packs up to 25 kg packs. Are you interested in which elements such 100% bat droppings contain? Detailed information can be found in the product description of Guanokalong Powder - bat droppings (Powder). High-quality bat droppings, on the other hand, do not contain any germinating weed seeds. Some growers, especially outdoor growers and farmers, prefer the pelleted form of bat droppings rather than powder - Guanokalong Granules (Pellets). Compared with powder, pellets are less prone to being dispersed by the wind. Another major advantage of these fertilisers is their rapid action, which in practice makes targeted adjustments to plant growth easier.

As for granules or pellets made from bat droppings, an interesting alternative is also a mixture of granules and humic acids - Guanokalong Guano Black (Black Pellets). Humic acids help plants absorb important nutrients efficiently. For completeness, you can read more in the separate article entitled Fulvic and humic acids: significance and use in plant nutrition. The gradual release of nutrients, which in the case of this product takes a quarter to half a year, eliminates the risk of plant burn due to over-fertilisation, which is therefore practically impossible. Enzymes, calcium and magnesium take care of rich soil life. Guanokalong Guano Black granules make transplanting plants easier for growers, among other things.
It should be added that natural fertilisers based on bat droppings also bring growers the same benefits when growing plants as the above-mentioned substrate. Again, you can count on natural protection against bacterial plant infections, there is no need to deal with an expiry date, you do not have to worry about unpleasant odour and you can look forward to a wonderful harvest in organic quality, whether you are growing fruit, vegetables or medicinal herbs. However, Guanokalong goes much further in the matter of maximally effective, yet purely natural plant nutrition...
Proof of this is another new product for indoor and outdoor use throughout the growing cycle: the vegan growth fertiliser Guanokalong Veg Pearls. It is made from sugar cane plant extract and, after application, your plants will quite literally amaze you with their growth! In addition, it also works with less frequent watering. Besides the economic aspect, there are also other reasons why growers like it:
- Increased plant resistance to stress. (We recommend the separate article: Stress also harms plants, or abiotic stresses in plants.)
- Easy application (spreading) thanks to the rounded shape of each pellet.
- Longer soil life.
- There is no risk of mineral leaching.

Guanokalong Complete Organics is a comprehensive organic fertiliser of the “all in one” type. What does that mean?
- A completely ideal natural fertiliser for growth and flowering if you do not want to worry too much about soil conditions for healthy plant development, whether in a pot or in a bed in the garden.
- What does this balanced mixture consist of?
- powdered Guanokalong
- seaweed powder
- palm ash
- vegetative powder
- fish meal
- volcanic soil
- As a result, the final composition is rich in important microelements, as well as amino acids, humic acids and enzymes (see separate article: Enzymes).
- All active substances that are part of the complex composition of Guanokalong Complete Organics are released and activated by normal fermentation, and so when it is used in soil, natural processes occur that improve its properties and support the soil microflora.
Therefore, if your plants are exposed to obvious stress, or if your soil is poor in nutrients, Complete Organics will serve you better than many chemical and mineral fertilisers.

Other products from the Guanokalong brand have proven themselves as natural boosters:
- Guanokalong Palm Tree Ash is a 100% VEGAN product based on palm ash. A raw material rich in basic nutrients, namely nitrogen, phosphorus and potassium (N - P - K) (see separate article: NPK - what is it?). Other elements contained in the palm ash naturally regulate soil acidity. We can confidently describe this ecologically sourced palm ash as a highly effective flowering booster. It is released directly, so dose it with increased caution. Experienced growers like to use the composition of this product in combination with bat droppings in powder form when growing vegetables (especially tomatoes) in the garden.
- Guanokalong Seaweed Powder is a 100% vegan additive suitable for any mixture of natural fertilisers. In this case, it is the already several times mentioned seaweed powder, which stands out for its ability to stimulate the activity of beneficial microorganisms living in the soil. The microelements contained in seaweed powder are ideal for strengthening the soil and improving the growth of your plants. However, there is one more property for which seaweed powder is renowned among growers, and that is its ability to retain moisture exceptionally well. Thanks to this, its application also ensures balance in the growing environment in terms of soil moisture. The growth hormones it contains provide additional stimulation to the root system, thanks to which plants grow faster. Ultimately, it therefore also serves as a natural growth stimulator for indoor and outdoor use.

Liquid fertilisers (liquid fertilisers)
Dry fertilising is now replaced by liquid base and supplementary fertilisers:
- Guanokalong liquid base fertilisers are characterised by the absence of phosphorus. The pair of products, bringing extra stimulation of microbial life in the soil with a prolonged effect, contains only nitrogen and potassium in a suitable ratio to ensure vigorous plant growth, or the formation of abundant blooms and large, juicy fruits. These base fertilisers for growth and flowering have a low salt index, so they do not place unnecessary strain on plant roots. You can use them when growing herbs outdoors just as well as if you have a grow tent at home.
- Kalong Grow: vegan base plant nutrition with an increased nitrogen content for the growth or vegetative phase.
- Kalong Bloom: vegan base plant nutrition with an increased potassium content for the flowering phase.

- Guanokalong liquid boosters
- Guanokalong Extract is a liquid flavour enhancer for cultivated crops full of purely natural ingredients based on 100% bat droppings. If you do not grow plants in soil or in coconut fibre, the liquid extract is the solution for you. This product is compatible with absolutely all growing methods and systems, both outdoors and indoors! What can you expect from it after application? Better taste, overall quality and yield of your plants, together with the benefits that, as we have already explained, are associated with the entire Guanokalong range (i.e. gradual release of nutrients reducing the risk of irreversible plant damage due to over-fertilisation to an absolute minimum, additional protection against bacterial infections, support for the root zone, etc.).
- Guanokalong BatBoost is characterised by a high potassium content. The nitrogen (N) concentration is lower than 2%. The liquid booster Batboost is also suitable for every cultivation system. What is it made of? Growers are helped to achieve a better harvest in every respect by a balanced mixture of the above-mentioned extract and palm ash. Add to that the beneficial effects of humic acids.
- Guanokalong Seaweed Liquid is the liquid version of the natural stimulator based on cold-processed seaweed Seaweed Powder (see above).

OUR TIP: You will achieve the best results when organically growing plants in soil if you apply Guanokalong fertilisers on the basis of the clear dosing chart directly from the manufacturer.
Are you interested in products from the Dutch brand Guanokalong? We will always be happy to advise you on the selection, whether it concerns pack size or a suitable combination of specific products, based on your individual needs and plans at the well-known e-mail address info@higarden.cz.
We also recommend these products:
- Circulation fans
- HERCULES aerated plastic flower pots
- Hydroton - AGRO expanded clay 4-8 mm, 1 l
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