

🌿 Elevate your grow game with the pro’s secret weapon!
The MASTERBLEND 4-18-38 Complete Combo Kit is a professional-grade, 3-component fertilizer system designed for optimal plant growth. It includes MasterBlend 4-18-38, Calcium Nitrate, and Epsom Salt in a precise 1:1:0.5 ratio, fully water soluble for rapid nutrient uptake. Ideal for hydroponics and Kratky methods, this 2.5-pound bulk kit delivers balanced nitrogen, phosphorus, and potassium to maximize plant health and yield.
| ASIN | B072F2BL9D |
| Best Sellers Rank | #6,757 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #276 in Garden Fertilizers |
| Brand | MasterBlend |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,707) |
| Is Discontinued By Manufacturer | No |
| Item Form | Powder |
| Item Weight | 10 pounds |
| Item model number | MASTERBLEND-COMBO_2.5LB-KIT |
| Liquid Volume | 5 Liters |
| Manufacturer | MasterBlend |
| Specific Uses For Product | Plant Growth |
| Unit Count | 1 Count |
S**E
Perfect for Hydroponics!
A lot of YouTubers recommended this so I thought I'd give it a try. When it arrived, I was quite surprised how small the packages were, but it matched the description so that's on me. That said, a little goes a long way. I've used this in both a system with aeration and without (Kratky method) and it worked perfectly in both cases. Here's what I've grown with it: - Basil indoors with natural light - Basil indoors with artificial light - 2 kinds of Lettuce indoors with artificial lights - Spinach indoors with artificial lights - 2 types of tomatoes outdoors with natural light. The Plant growth with this fertilizer and the hydroponic method was far superior to similar plants planted in dirt. The plants that had aeration did better the ones in using the Kratky method. I don't think I'll try tomatoes again simply because they take so much solution throughout the year vs. the ones I planted in self watering soil containers. Overall, 5 stars. Works as well as the YouTubers claimed it would and lasts a long time.
I**C
A Complete Game Changer for Hydroponics and Kratky Method!
I have been using the MASTERBLEND 4-18-38 Complete Combo Kit for my hydroponics and Kratky method, and let me tell you, it's a game changer! With its 100% effectiveness, this kit has truly transformed my growing experience. The nutrient mix provided in this kit is exceptional. It has all the essential elements plants need for healthy growth, resulting in vigorous and lush greenery. The balanced ratio of 4-18-38 ensures optimal nutrient uptake, giving my plants the perfect blend of nitrogen, phosphorus, and potassium. What I love most about this kit is its versatility. Whether I'm using hydroponics or the Kratky method, the MASTERBLEND formula consistently delivers outstanding results. It's convenient to use and saves me the hassle of managing multiple nutrient solutions. The quality of the product is top-notch. The ingredients are of the highest standard, ensuring that my plants receive the best nutrition. I've seen remarkable improvements in growth, flowering, and overall plant health since I started using this kit. If you're into hydroponics or the Kratky method, the MASTERBLEND 4-18-38 Complete Combo Kit is an absolute must-have. It's a complete game changer that will take your growing to new heights. I highly recommend it for both beginners and experienced growers. Trust me, you won't be disappointed!
A**A
Works great so far. No complaints.
It looks as though all of my indoor and outdoor plants are loving these fertilizers.
A**R
Perfect for my quart jar hydroponics
I was a little hesitant about getting into hydroponics because managing the nutrients seemed so complicated. But I decided to take a chance with this kit of ingredients and I am so glad I did! The instructions are explicit and clear and my Kratky jar lettuces and herbs are growing better than they ever did in soil. I make up a gallon at a time, which is an easy amount to manage for anyone doing small scale hydroponics. Good investment.
C**R
Good for hydro
Expensive, but works well. Buy salt at store for savings.
D**D
Good deal on fertilizer
This product that I bought was pretty good. I used it in a hydroponic system I was setting up. It was nice to have all three in the combo kit which made it just easier to do rather than trying to buy them individually. the plants grew well and I can't complain about the product. Since the plants grew well, it must have been a good product. Without having to search around for the products individually, I thought the money I paid for it was well worth the price. Don't expect huge bags as it is only a 2.5 pound kit. But the size was perfect for was I was doing and it was what I expected.
E**N
System worked well
I've only done one grow on this, experimenting with Kratky method on 6 different lettuce varieties. It did really well, and other than a few leaves with some burn, they all came out ok, and grew all the way until it sucked the tank dry with a good root mass.
T**N
Affordable and reasonable quality
Good blend and value for a small garden. Not the ultimate in value, for that you would need to order 50 lb bags of fertilizers and know how to mix your own stock solutions.
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3 weeks ago
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