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Grotek Monster Bloom - Green Thumb Depot
Grotek Monster Bloom

Grotek Monster Bloom

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SKU: GTMB6020

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Grotek Monster Bloom

Grotek Monster Bloom is a high-performance flowering supplement designed to maximize bloom development and overall yield. With 50% phosphorus and 30% potassium, it stimulates flower formation, enhances fruit vigor, and supports photosynthesis and starch production. Ideal for the mid to late flowering stages, Monster Bloom ensures robust blooms and optimized harvest quality. Suitable for soil, soilless, or hydroponic systems, it’s available in multiple sizes to suit all growers.

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

Boost Your Bloom with Monster Bloom

Monster Bloom combines high phosphorus and potassium with plant-optimized nutrients to stimulate flowering, improve fruit quality, and enhance overall harvest performance during critical bloom stages.

  • Promotes mid to late-stage flower development.
  • High phosphorus encourages strong blooms and metabolism.
  • Potassium enhances fruit vigor and ripening.
  • Supports photosynthesis and starch production.
  • Compatible with soil, soilless, and hydroponic systems.
  • Easy to mix and apply with each fertilizer cycle.

Optimize Every Bloom

Monster Bloom ensures your plants reach full flowering potential, improving both flower size and quality. Its potent phosphorus and potassium formula supports natural plant metabolism, photosynthesis, and ripening, helping growers achieve maximum yield and superior harvest results.

Why Grotek?

Grotek delivers premium, science-backed fertilizers and supplements trusted by professional growers worldwide. Their products are designed for maximum nutrient uptake, consistency, and reliable results, ensuring healthier plants, stronger roots, and more productive harvests every cycle.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Reviewer
Jim D

Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
Reviewer
Glenn Appleton

The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Reviewer
Freddie

Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Reviewer
Kar

←
→

FAQ Section

When should I use Monster Bloom?
Begin application when buds start forming and continue through the flowering cycle, stopping 1-2 weeks before harvest.
What nutrients are in Monster Bloom?
It contains 50% phosphorus and 30% potassium, supporting bloom formation, fruit vigor, photosynthesis, and starch production.
Can I use it with other fertilizers?
Yes, Monster Bloom is designed to complement your existing fertilizer program for optimized flowering.
What sizes are available?
It is available in 130 g, 500 g, 2.5 kg, 5 kg, and 10 kg sizes.
How do I mix Monster Bloom?
For soil, soilless, or hydroponics, mix 6 g per 19 L of water (1 tsp / 5 gal) and apply every time you fertilize.
Is it safe for all flowering plants?
Yes, when used as directed, it is safe for flowering vegetables, fruits, and ornamental plants.
Can Monster Bloom improve harvest quality?
Yes, its high phosphorus and potassium formula enhances flower size, fruit vigor, and overall harvest quality.

Specifications

Grotek Monster Bloom
Product Name Grotek Monster Bloom
SKU GTMB6020
Phosphorus (P) 50%
Potassium (K) 30%
Available Sizes 130 g, 500 g, 2.5 kg, 5 kg, 10 kg
Barcodes GTIN: 10670829208399, UPC-A: 670829208392
Shipping Weight 0.4 lbs (for 130 g)
Dimensions 9.0L x 7.5W x 7.0H (CS), 2.8L x 2.8W x 3.1H (EA)

What is included?

It includes:

  • Grotek Monster Bloom (selected size)
  • User Instructions / Usage Guidelines

Warranty Policy

Please check out the manufcaturers website for Warranty related issues.

img

Grotek Monster Bloom

Grotek Monster Bloom is a high-performance flowering supplement designed to maximize bloom development and overall yield. With 50% phosphorus and 30% potassium, it stimulates flower formation, enhances fruit vigor, and supports photosynthesis and starch production. Ideal for the mid to late flowering stages, Monster Bloom ensures robust blooms and optimized harvest quality. Suitable for soil, soilless, or hydroponic systems, it’s available in multiple sizes to suit all growers.

Product Overview

Specifications

What's Included?

Warranty & Returns

Product Overview

Monster Bloom combines high phosphorus and potassium with plant-optimized nutrients to stimulate flowering, improve fruit quality, and enhance overall harvest performance during critical bloom stages.

Key Features:
1. Promotes flower development
2. Boosts bloom metabolism
3. Enhances fruit ripening
4. Supports photosynthesis starch
5. Works all systems
6. Easy fertilizer mixing

wetanddry
wetanddry

Core Benefits and Mid-Bloom Yield Performance of Grotek Monster Bloom

Grotek Monster Bloom is a high-potency flowering supplement formulated to drive aggressive bloom development and maximize harvest potential during the middle stages of flowering. With extremely high levels of phosphorus and potassium, it fuels flower formation, enhances metabolic activity, and supports sugar and starch production for heavier, more vigorous blooms. Designed to be used when buds begin forming and continued through the bloom cycle, Monster Bloom helps plants pack on size, density, and yield before finishing.

High-P Bloom Boost

Mid-Flower Power

Sugar & Starch Support

Yield Maximizer

Available in Different Sizes

How to Use

1. Seedlings/Cuttings: Do not use on young plants; reserve for the flowering stage.

2. General Use: Use as a high-P/K bloom supplement to increase flower and fruit vigor.

3. Timing: Begin when buds start forming and continue with each fertilizer application.

4. Application Method: Mix into feed water for soil, soilless, or water culture systems.

5. Mix Rate: Use 6 g per 19 L of water (1 tsp per 5 gal).

6. Mix Order: Dissolve Monster Bloom in water first, then add base nutrients and additives.

7. Frequency: Apply every time you fertilize during the bloom cycle.

8. Stop Before Harvest: Discontinue use 1–2 weeks prior to harvest.

9. Clean & Store: Keep scoops/tools clean; store sealed in a cool, dry place.

Why Grotek

Grotek delivers premium, science-backed fertilizers and supplements trusted by professional growers worldwide. Their products are designed for maximum nutrient uptake, consistency, and reliable results, ensuring healthier plants, stronger roots, and more productive harvests every cycle.

wetanddry
wetanddry
wetanddry

Why Choose Us

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

wetanddry
Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Jim D
Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I’ll definitely order from them again
Glenn Appleton
The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we’re starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Freddie
Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Kar
←
→


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FAQ Section

When should I use Monster Bloom?
Begin application when buds start forming and continue through the flowering cycle, stopping 1-2 weeks before harvest.
What nutrients are in Monster Bloom?
It contains 50% phosphorus and 30% potassium, supporting bloom formation, fruit vigor, photosynthesis, and starch production.
Can I use it with other fertilizers?
Yes, Monster Bloom is designed to complement your existing fertilizer program for optimized flowering.
How do I mix Monster Bloom?
For soil, soilless, or hydroponics, mix 6 g per 19 L of water (1 tsp / 5 gal) and apply every time you fertilize.
Is it safe for all flowering plants?
Yes, when used as directed, it is safe for flowering vegetables, fruits, and ornamental plants.
Can Monster Bloom improve harvest quality?
Yes, its high phosphorus and potassium formula enhances flower size, fruit vigor, and overall harvest quality.
What sizes are available?
It is available in 130 g, 500 g, 2.5 kg, 5 kg, and 10 kg sizes.

Specs & Dimensions

Feed Chart PDF
Color Variation Info PDF
Brand Grotek
SKU GTMB6020
Size 130 g, 500 g, 2.5 kg, 5 kg, 10 kg
Phosphorus (P) 50%
Potassium (K) 30%
Barcodes GTIN: 10670829208399, UPC-A: 670829208392
Shipping Weight 0.4 lbs (for 130 g)

Items in the box

Grotek Monster Bloom (in selected size)

Warranty & Returns

Please check out the manufcaturers website for Warranty related issues.

Click here for more details: Read our Return Policy

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