Grotek Blossom Blaster PK Bloom Trigger
Official Distributor
An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy,
transparent returns. If you're comparing options, we encourage you to review competitors’ fine
print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure that never
happens to you.
Free Shipping
On most orders
Call Us
(833) 416-0375
Mon-Fri 9am-6pm CST
Lowest Price Guranteed
There is never a better price,
we can always price match
No Sales Tax
Absolutely no tax on any purchase
Easy Returns
Always hassle free
Free Shipping
Lowest Price Gurantee
No Sales Tax
Easy Returns
Grotek Blossom Blaster
Grotek Blossom Blaster is a powerful, high-phosphorus and potassium flowering supplement formulated to enhance early bloom development and fruit set. By delivering readily available phosphorus and potassium, it supports strong root activity, efficient sugar transport, and explosive flower formation. Designed for use during the first three weeks of flowering, it is compatible with all grow media and base nutrients. Available in 130 g, 500 g, and 2.5 kg sizes.
- Features & Benefits
- Product Specifications
- What is included?
- Warranty Policy
Grotek Blossom Blaster – High-Impact Bloom Nutrition
Blossom Blaster delivers an aggressive PK ratio precisely when plants transition into flowering. Its targeted formulation jumpstarts bloom development, promotes energy transfer, and supports strong reproductive growth without disrupting existing nutrient programs.
-
High phosphorus (48%) to stimulate bloom and root activity.
-
Potassium (31%) supports sugar transport and flower development.
-
Designed for use in the first 3 weeks of flowering.
-
Compatible with all grow media and base nutrients.
-
Highly concentrated powdered formula.
-
Available in 130 g, 500 g, and 2.5 kg sizes.
Explosive Early Flower Development
Blossom Blaster is engineered to push plants into high-performance flowering by supplying critical bloom-stage nutrients at the exact moment they are needed. This results in faster flower initiation, stronger bloom sites, and improved energy allocation for maximum reproductive potential.
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.
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!!
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
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.
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
FAQ Section
Specifications 
What is included?
It includes:
-
Grotek Blossom Blaster (130 g, 500 g, or 2.5 kg – selected size)
-
Original Manufacturer Packaging
Warranty Policy
Please check out the manufcaturers website for Warranty related issues.
Feed Chart
