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Madame Grow bat guano 2-10-2, 500 g bag

Bat Guano Fertiliser 2-10-2 – Natural Feed for Growth and Flowering – Madame Grow

€14.99
€12.74 Save 15%
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rating Read the 4 reviews
Average rating: 10/10 Number of reviews: 4
  • The perfect boost to grow and bloom: NPK 2-10-2 bat guano with 10 % phosphorus, the flowering nutrient.
  • Only 2 applications per crop: 15 g per 11 L pot at the start of growth and at the start of flowering.
  • Calcium and magnesium for the whole cycle: slow release that feeds for weeks without burning roots.
  • For all types of plants, indoors and outdoors, in pots or in the ground. No unpleasant smell.
  • 100 % natural fertiliser, rich in micro and macronutrients. Improves substrate structure and microbial life.
  • Buy direct from the manufacturer, since 1999.
Size: 500 gr
Quantity
In stock

Premium Bat Guano · 100 % natural fertiliser

The perfect boost to grow and bloom

For all types of plants, indoors and outdoors. With two doses your plant has phosphorus, calcium, magnesium and micronutrients for the whole crop.

  • 10 % Phosphorus for blooming
  • 6.3 % Magnesium all cycle long
  • ×2 Only 2 applications
  • 100 % Natural fertiliser

How much guano does your plant need?

Dose: 15 g per 11-litre pot at each application. Use the calculator or the table for your pot size.

Pot Per application Per crop (×2) Equals
5 L 7 g 14 g ≈ ⅓ tablespoon
7 L 10 g 19 g ≈ ½ tablespoon
11 L 15 g 30 g ≈ ¾ tablespoon
20 L 27 g 55 g ≈ 1⅓ tablespoons
30 L 41 g 82 g ≈ 2 tablespoons
50 L 68 g 136 g ≈ 3½ tablespoons

1 tablespoon ≈ 20 g. Always start with the stated dose: more product does not mean better results.

Two applications, that’s it

  1. Moment 1 · Start of growth or repotting. Mix the dose into the substrate before planting, or into the top layer if the plant is already in. Water afterwards.
  2. Growth weeks (optional). Pair it with Growth Accelerator in the first waterings for strong roots.
  3. Moment 2 · Start of flowering. Second dose, the same as the first. The phosphorus arrives just when the plant needs it to bloom.
  4. End of the crop (optional). Finish with Bazz Bloom K30 for heavier, tastier flowers and fruit.

How to apply: ideally mix it into the substrate. If you can’t work the soil, dissolve it in the watering can.

Much more than phosphorus

Content %
Phosphorus (P) 10 %
Magnesium (Mg) 6.29 %
Nitrogen (N) 2 %
Potassium (K) 2 %
Calcium oxide 2 %

Plus iron, copper, zinc and organic matter. pH 6.5.

Background calcium and magnesium, all cycle long. It releases calcium and magnesium little by little while the plant grows and blooms, helping to prevent deficiencies. That makes it the perfect complement to any feeding plan: apply it twice and it works for the whole crop.

Urgent deficiency?

Yellow leaves or spots? Your plant needs calcium or magnesium now

Guano prevents, but it works slowly. If you already see symptoms, these correctors act fast:

A fertiliser that also improves the soil

  • Slow release: nutrients are released over weeks. No spikes and no burnt roots if you follow the dose.
  • Living substrate: its organic matter and microbial life activate the soil, improve its structure and help retain moisture.
  • Powerful flowering: phosphorus is the basis of flowering and fruit set, in any plant.

Combine it and cover the whole crop

Prefer not to think about it? The Power Kit and the Platinum Kit include the full cycle at a better price.

Frequently asked questions

How much guano per pot?
15 g per 11-litre pot at each application. For other sizes, check the dose table.

How often is it applied?
Only twice per crop: at the start of growth (or when repotting) and at the start of flowering. As it releases slowly, there’s no need to repeat it every week.

Mixed into the soil or dissolved in water?
Mixed into the substrate is ideal. If the plant is already settled and you can’t work the soil, dissolve it in the irrigation water.

Is it good for flowering?
Yes, that’s its strength. Its 10 % phosphorus is the key nutrient for blooming and fruit set.

Does it smell bad?
No. It’s practically odourless, so you can use it indoors, on the terrace or on the balcony.

Can it be mixed with other fertilisers?
Yes. It works well with Growth Accelerator, Jamaican Bloom and Bazz Bloom K30. Follow the dose of each one.

My plant has yellow leaves – will guano fix it?
Guano supplies calcium and magnesium continuously to prevent problems. If a deficiency is already visible, use a fast corrector: Bone & Muscle (calcium and magnesium), Cala Paradise (calcium) or Madagascar (magnesium).

How should it be stored?
In a cool, dry place, with the doypack tightly closed and out of reach of children and pets.

Specific References

ean13
8437017831099

questions Al on 2025-01-19 00:28:14
Question: 

If I mix the product in soil. Should I still mix it with the water for the flowering phase?

Answer: 

Sure! The recommendation is to mix the product at the beginning of the vegetative phase and at the beginning of the flowering phase. You can mix it directly into the soil or the water, as it doesn’t make a difference. However, remember that it’s only necessary to do this once at the start of each phase. Additionally, if you notice any nutrient deficiencies, you can use it at any time the plant needs calcium or magnesium. If you have any other questions, feel free to reach out to us! We’ll be happy to assist you.

questions Andres Temus on 2024-11-08 09:26:14
Question: 

Can I use this fertilizer on other types of plants or in home gardening?

Answer: 

Yes, Madame Grow Bat Guano is ideal for all types of plants, including those in home gardening. Its organic formula, rich in essential nutrients like nitrogen, phosphorus, potassium, calcium, and magnesium, benefits ornamental plants, fruit trees, and shrubs by enhancing their growth and resilience. Additionally, being odorless and slow-release, it’s suitable for both indoor and outdoor use, offering long-lasting, beneficial effects without impacting the home environment.

questions Manuel on 2024-10-20 14:37:10
Question: 

Hey there, I read in your Bat Grow schedule tabel, that when I am using the Bat Grow fertilizer, I have to cut half all other fertilizers. So all others mean all liquid fertilizers just the half of amount? Looking forward hearing back from you

Answer: 

Hello,

Products containing Nitrogen, Calcium and Magnesium should be reduced by half, only during the two weeks in which BAT guano is applied.

Thank you for your trust.

questions Alexander Höppner on 2024-07-15 00:00:00
Question: 

Hallo ich habe Mal eine Frage zu dem dünger, ist es geeignet für Eisen Mangel. Mit freundlichen grüßen Alexander

Answer: 

Hallo,

Es hilft hauptsächlich bei Stickstoff-, Kalzium- und Magnesiummangel, aber nicht sofort, da es für den unmittelbaren Mangel das Produkt „Bone & Muscle“ gibt, bei Eisenmangel empfehle ich Produkte wie Sweet Lolita oder Caribbean Algae, da es mit seiner neuen Formulierung fortschrittlicher ist enthält viel Eisen.

Bat Madame Grow zieht langsam ein, sodass Nährstoffe langsam freigesetzt werden, um diesen Mängeln vorzubeugen.

Bei weiteren Fragen stehen wir Ihnen gerne zur Verfügung.

Das Team von Madame Grow sendet Ihnen herzliche Grüße.

questions Dre on 2024-04-26 09:19:14
Question: 

Can you mix the product directly into the soil? If yes, how many grams per liter of soil would you recommend?

Answer: 

Hello,

Yes, it can be mixed directly with the soil, it is even better, the proportion is about 15 grams for a 14 liter pot, if it is larger or smaller we will increase or decrease proportionally.

Thank you for your trust, if you have any other questions, we are at your disposal.

questions Mo on 2024-04-05 21:26:47
Question: 

For the BAT Madame Grow… On the product it is saying 15 g / liter. On the plan for the Auto Flowering/ Light Mix it is 2.5 g/L and for Feminized it is 5 g/L. Why this big difference between the 15g/L on the product compared to the 2.5g/L or 5g/L?

Answer: 

Good afternoon,

The quantities of Bat Madame Grow are approximate, they will depend on how and when we apply the product.

The 15 grams per liter is if we mix it with the irrigation water, and the proportion will depend on the liters of irrigation that the pot supports.

If we are going to water with half a liter of water, we will apply 7.5 grams.

If we mix directly with the soil, it will be 5 or 10 grams, it all depends on the size of the pot.

A couple of tablespoons mixed with the soil is enough, it is slowly absorbed and does not saturate the plant.

For any additional information, you can write to us by WhatsApp at +34657220534

Thank you very much for your confidence.

questions Florian  on 2024-03-21 22:56:30
Question: 

Bonjour , Le bat grow doit être utilisé une seul fois a la croissance et a la floraison où on l'utilise pendant quelques semaines ? Je voudrais prendre aussi votre kit 420 power , est ce que j'ai besoin de prendre le bat grow ? Merci beaucoup

Answer: 

Salut,

Merci de votre confiance, le Bat Madame Grow est un enrichi en Calcium et Magnésium qui enrichit le sol, c'est un complément qui aide la plante à mieux se développer.

Il n'est appliqué qu'une seule fois pendant la croissance et une fois pendant la floraison, car il s'agit d'un engrais à absorption lente.

Il se marie très bien avec le kit 420 Power, car ce sont les trois produits les plus puissants de Madame Grow, avec le correcteur de microéléments naturel et parfait pour le substrat.

Pour toute autre question, nous sommes à votre disposition.

  

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Starker Blütedünger
rating
10
2025-05-27
Manuel D.

Madame Grow Bat Guano überzeugt mit hohem Phosphorgehalt und rein organischer Qualität. Ideal für kräftige, harzige Blüten – besonders wirksam in Kombination mit Wurmhumus und Algenextrakt.

Answer:

Vielen Dank für dein Feedback! 
Wir freuen uns sehr, dass das Bat Guano von Madame Grow deine Erwartungen erfüllt hat. Sein hoher Phosphorgehalt und die rein organische Qualität machen es zum perfekten Verbündeten für eine intensive und harzige Blüte. Und ja! In Kombination mit Wurmhumus und Algenextrakt sind die Ergebnisse wirklich beeindruckend. ??

Danke, dass du auf uns vertraust, um deinen Anbau zu stärken. Gemeinsam wachsen wir weiter! ?

Guter Dünger, wenn er im Angebot ist
rating
10
2024-12-16
Daniel M.

Ich bin zufrieden mit dem Bat Guano Dünger. Ich empfehle dieses Produkt im Angebot zu kaufen.

Bat Madame grow
rating
10
2024-10-22
Markus Marx

I am very satisfied so far, only the shipping took a while

Great stuff!
rating
10
2024-09-23
Sm0ke\'a\'dee

I used the Bat guano for my flowering phase and it helped amazingly! I used it for reammending the soil too! Great stuff and would order again!

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