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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
NZD 104
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 Thursday, September 10
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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
0%
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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
RA
Ranee
Verified buyer
“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”
22 July 2026 · via Trustpilot
NC
NordVPN
Verified buyer
“very speedy delivery,tracking info was superb-best experikence ever!!!”
24 June 2026 · via Trustpilot
NH
Nicholas
Verified buyer
“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”
22 June 2026 · via Trustpilot
D
Dneah
Verified buyer
“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”
15-Jul-26 · via Trustpilot
TS
Tania
Verified buyer
“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”
11-Jul-26 · via Trustpilot
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NZD 104
Order now and get it around Thursday, September 10
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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