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Item #:
20336463
MasterBlend 4-18-38 Fertilizer Combo Kit (5 Pounds)
88% of respondents would recommend this to a friend
Item #:
20336463
FJD 145
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Only 12 items left in stock.
Order now and get it around Sunday, September 20
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The MasterBlend Combo Kit contains all 3 concentrated dry powdered and water-soluble components needed for the recommended recipe in the proper amounts
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What Stands Out
Optimal Nutrient Ratio
The 4-18-38 NPK ratio delivers precise nutrient balance for optimal plant growth, ensuring lush foliage and vibrant blooms, surpassing traditional fertilizers.
Enhanced Performance
Specially formulated for high-performing plants, this kit addresses common nutrient deficiencies, leading to healthier crops and increased yield, making it perfect for serious gardeners.
Convenient Packaging
The 5-pound package is easy to handle and measure, providing flexibility for various gardening needs, ensuring that both novice and experienced gardeners can apply without hassle.
Product Details
- Includes all 3 dry powdered and water-soluble components for the MasterBlend fertilizer recipe
- Kit quantities provide better value in a one-stop kit, saving on separate shipping and hassle
- Classic MasterBlend recipe proportions: 12g MasterBlend, 12g Calcium Nitrate, 6g Epsom Salt for 5 gallons
- Available in 2.5, 5, 12.5, and 25-pound kits with corresponding component quantities
- Used by professionals worldwide for optimum plant growth, 100% water soluble for easy uptake
- Components include MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, and Epsom Salt (Magnesium Sulfate)
| Npk ratio | 4-18-38 |
| Fertilizer type | Synthetic |
| Form | Crystals, Granules, Pellets |
| Rec. use | Plant |
| Brand | Masterblend International |
| Rec location | Indoor, Outdoor |
| Plant category | Vegetables |
| Plant name | Tomato, Vegetable |
| Product line | MasterBlend |
| Size | 5 lbs |
| Weight | 5 lb (2.27 kg) |
| Product net content uom | Pound |
| Manufacturer | PowerGrow Systems |
| Piece count | 3 |
| Package Weight | 25 Pound |
Who Should Buy?
-
Container Gardeners
Ideal for those growing plants in containers, providing essential nutrients for optimal growth and blooming.
-
Hydroponic Users
Perfect for hydroponic systems needing balanced nutrition, enhancing plant development and yield throughout growth cycles.
-
Floral Enthusiasts
Great for gardeners focused on flowering plants, delivering the right nutrients for vibrant and healthy flowers.
-
Vegetable Growers
May not be suitable for all vegetables, which might require different nutrient ratios for optimal growth.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What does the kit contain?
Answer: The kit contains MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, and Epsom Salt (Magnesium Sulfate) -
Question:
Is the fertilizer water-soluble?
Answer: Yes, it is 100% water-soluble for easy plant uptake -
Question:
What sizes are available?
Answer: The kit is available in 2.5 pound, 5 pound, 12.5 pound, and 25 pound sizes
Masterblend International Garden Chemicals & Treatments Editorial Review
This fertilizer kit received positive feedback from most customers. Many were pleased with the timely delivery and the affordable price. Although the reviewer has not personally used the product yet, they mentioned that their friends have had great results, which has made them excited to try it. Customers have also expressed that the fertilizer kit is of great quality and perfect for small hydroponic gardening at home. The kit seems to fulfill customers' expectations and has provided them with the desired results. Overall, this fertilizer kit has received positive reception from customers, who appreciate its effectiveness and affordability.
Customer Reviews & Ratings
11 customers ratings
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5 Star
81%
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4 Star
9%
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3 Star
0%
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2 Star
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1 Star
9%
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Pros
- Timely delivery
- Affordable price
- Great quality
- Suitable for small hydroponic gardening at home
- Effective in producing desired results
Cons
- No negative feedback mentioned
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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FJD 145
Order now and get it around Sunday, September 20
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 12 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- All-in-one kit for the ultimate MasterBlend fertilizer recipe
- Save time and money by getting all components in one place
- Used by professionals worldwide for optimum plant growth
- Convenient and easy to use
- Available in various sizes to suit your needs
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