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Item #:
21589078
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
Item #:
21589078
NZD 109
Price Details
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In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, August 19
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The MasterBlend 4-18-38 Fertilizer Combo Kit contains all 3 concentrated dry powdered and water-soluble components needed for the recommended recipe in the proper amounts, offering the convenience of one-stop shopping without compromising on effectiveness.
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What Stands Out
Nutrient-Rich Formula
The MasterBlend 4-18-38 Fertilizer Combo Kit provides a balanced nutrient blend, promoting vigorous growth and optimal yield for various plants, addressing common deficiencies found in standard fertilizers.
Ease of Use
This combo kit simplifies fertilization with pre-measured portions, making it user-friendly for both beginners and experienced gardeners, ensuring precise application without the hassle of mixing complexities.
Versatile Application
Ideal for hydroponic systems, container gardens, or outdoor planting, this fertilizer adapts to diverse gardening needs, offering versatility that stands out against competitors, ensuring healthy plants in any environment.
Product Details
| Npk ratio | 4-18-38 |
| Fertilizer type | Synthetic |
| Form | Crystals |
| Rec. use | Plant |
| Brand | PowerGrow Systems |
| Rec location | Outdoor |
| Plant category | Vegetables |
| Plant name | Tomato|Vegetable |
| Features | Breathable |
| Product line | MasterBlend |
| Size | 12.5 lbs |
| Net content statement | 12.5 lb |
| Weight | 12.5 lbs (5.67 kg) |
| Product net content parent | 12.5 Pound |
| Product net content uom | Pound |
| Manufacturer | PowerGrow Systems |
Who Should Buy?
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Container Gardeners
Ideal for gardeners using containers who need a reliable fertilizer for growth and nutrient balance.
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Hydroponic Systems
Perfect for hydroponic setups, providing essential nutrients to promote healthy plant development.
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Vegetable Growers
Great for those growing vegetables, ensuring plants receive necessary nutrients for optimal yields.
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Flower-Focused Gardens
Not suitable for flower gardens needing a higher ratio of phosphorus for blooming.
Product Description
MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Can I mix the components in this kit together?
Answer: No, each component should be mixed into the water individually as per the recommended recipe to avoid nutrient lockout. -
Question:
How much nutrient solution does this kit yield?
Answer: This kit contains components in amounts suitable for 5 gallons of nutrient solution, based on the classic MasterBlend recipe. -
Question:
Is the MasterBlend fertilizer suitable for all types of plants?
Answer: MasterBlend is a widely used fertilizer that has shown to benefit plant growth across various plant types, making it versatile for many plant varieties.
PowerGrow Systems Garden Chemicals & Treatments Editorial Review
The MasterBlend 4-18-38 Fertilizer Combo Kit has received overwhelmingly positive reviews from customers. Users have praised its effectiveness for a variety of plants, particularly tomatoes and peppers, in both hydroponic systems and soil. The fertilizer is noted for providing a full range of nutrients and being customizable for different needs. Customers have also highlighted the affordability of the product, with many mentioning that a single kit can last for years. Overall, reviewers have found the fertilizer easy to use and have reported impressive growth results in their gardens. **
Customer Reviews & Ratings
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Pros
- Effective for a variety of plants, especially tomatoes and peppers
- Can be used in both hydroponic systems and soil
- Affordable price point
- Customizable for different plant needs
- Long-lasting, with a single kit lasting for years
Cons
- No negative feedback provided in the reviews
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
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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 109
Order now and get it around Wednesday, August 19
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:
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Features & Benefits
- Convenient all-in-one kit for the MasterBlend fertilizer recipe
- Includes MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, Epsom Salt
- Components packed in correct amounts for 5 gallons of nutrient solution
- 100% Water Soluble for easy plant uptake
- Available in 2.5, 12.5, and 25-pound kits for various usage needs
- Used by professionals worldwide for optimum plant growth
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