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Item #:
81606507
Jack's Professional CA-MG LX Comprehensive Water-Soluble Fertilizer, 25lb
88% of respondents would recommend this to a friend
Item #:
81606507
SCR 1575
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Imported from USA store
QTY:
Order now and get it around Thursday, September 17
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Jack's professional calcium magnesium lx offers the highest quality formulation with a more effective chelating system resulting in improved plant performance.
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What Stands Out
Balanced Formula
Jack's Professional 15-5-15 offers a balanced nutrient ratio, promoting robust growth in short, stocky plants, enabling consistent and healthy development in liquid feed systems.
Water-Soluble
This fertilizer dissolves easily in water, ensuring immediate nutrient availability for plants, making it ideal for continuous feeding applications without clumping or residue.
Large Quantity
Supplied in a 25lbs bag, this product provides long-lasting support for growers, exceeding the needs of multiple growing cycles, ensuring excellent value and convenience.
Product Details
| Brand Name | Jack's Classic |
| Model Number | 77940 |
| Number of Packs | 1 |
| Manufacturer | JR Peter's |
| Number of Items | 1 |
| UPC | 671341779407 |
| Unit Count | 400 Fluid Ounces |
| Part Number | 77940 |
| Item Form | Powder |
| Specific Uses For Product | Dissolves |
| Coverage | Full |
| Target Species | plants |
| Item Weight | 24.9 pounds (11.29 kg) |
| Mixing Ratio | 1:1 |
| Brand | Jack's Classic |
Who Should Buy?
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Hydroponic Growers
Ideal for hydroponic systems, providing essential nutrients for short, stocky plants to thrive.
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Vegetable Cultivators
Great for growing vegetables that benefit from continuous feeding in nutrient-rich environments, ensuring robust growth.
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Greenhouse Operators
Perfect for greenhouse conditions, supporting the nutritional needs of diverse plants in a controlled environment.
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Outdoor Gardeners
Not suitable for outdoor gardening where slow-release fertilizers may be more effective for various plant needs.
Product Description
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Customer Questions & Answers
-
Question:
What is Jack's Professional 15-5-15 CA-MG LX Comprehensive Water-Soluble Fertilizer used for?
Answer: Jack's Professional 15-5-15 CA-MG LX Comprehensive Water-Soluble Fertilizer is formulated to support the growth of short, stocky plants that thrive on continuous liquid feeding. This balanced fertilizer provides essential nutrients including nitrogen, phosphorus, and potassium, ensuring robust plant health and growth. It's ideal for use in greenhouses, hydroponic systems, and container gardening, making it a versatile choice for both professional and home gardeners. -
Question:
How do I use Jack's Professional 15-5-15 fertilizer?
Answer: To use Jack's Professional 15-5-15 fertilizer, dissolve the recommended amount in water based on your plant's needs, and apply it during your regular watering schedule. This water-soluble fertilizer is designed for continuous liquid feed, providing a steady supply of nutrients, which promotes healthy growth and vibrancy in your plants. It's particularly effective in applications such as vegetable gardening and flowering plants, ensuring they receive the right nutrients at different growth stages. -
Question:
Is Jack's Professional fertilizer safe for indoor plants?
Answer: Yes, Jack's Professional 15-5-15 fertilizer is safe for use on indoor plants as well as outdoor varieties. When diluted according to instructions, it delivers nutrients without burning the plant roots. This makes it a great choice for indoor gardeners who want to maintain healthy, vibrant plants. Commonly used with houseplants that require rich nutrition, it helps enhance growth and foliage health in confined spaces like apartments or small homes. -
Question:
Can Jack's Professional fertilizer be used for specific types of plants?
Answer: Absolutely! Jack's Professional 15-5-15 fertilizer is ideal for various types of plants, especially those requiring short, stocky growth, such as tomatoes, peppers, and flowering annuals. Its balanced nutrient composition helps cater to the specific needs of these plants, promoting optimal growth and yields. Use it in a home gardening setup, and you will notice a marked improvement in plant vigor and production. -
Question:
What advantages does the CA-MG formulation provide?
Answer: The CA-MG formulation in Jack's Professional 15-5-15 fertilizer includes calcium and magnesium, which are critical for cellular function and plant health. Calcium strengthens cell walls, improving overall plant stability, while magnesium plays a vital role in chlorophyll production, aiding photosynthesis. This dual benefit is essential, especially in crops that are prone to blossom end rot or nutrient deficiencies, giving your plants the support they need for robust growth. -
Question:
How often should I apply Jack's Professional 15-5-15 fertilizer?
Answer: For optimal results with Jack's Professional 15-5-15 fertilizer, it is recommended to apply it every one to two weeks during the active growth phase of your plants. Regular feeding ensures that your plants receive a consistent supply of essential nutrients, which is crucial for strong growth and development. This is particularly beneficial during the growing season when the nutrient demands of your plants increase significantly. -
Question:
Can I mix Jack's Professional fertilizer with other fertilizers?
Answer: While Jack's Professional 15-5-15 fertilizer can be combined with other water-soluble fertilizers, it’s important to follow the label instructions carefully. Avoid mixing products that have conflicting nutrient profiles to prevent nutrient lockout or plant stress. If using in conjunction with other fertilizers, do so sparingly and monitor plant response to ensure optimal health. This mix can be especially useful for diverse garden setups needing tailored nutrients. -
Question:
Is Jack's Professional fertilizer environmentally friendly?
Answer: Jack's Professional 15-5-15 fertilizer is formulated to minimize environmental impact while supporting plant health. It uses water-soluble nutrients that are efficient, providing plants with what they need without excess runoff. Opting for this fertilizer allows you to nurture your plants responsibly in areas where sustainability is a priority, such as organic gardening or eco-friendly backyard setups. -
Question:
How should I store Jack's Professional 15-5-15 fertilizer?
Answer: To maintain the quality of Jack's Professional 15-5-15 fertilizer, store it in a cool, dry place, away from direct sunlight and moisture. Ensure that the container is tightly sealed to prevent clumping or contamination. Proper storage ensures that the nutrients remain effective when you need to use them, which is particularly important for long-term gardening projects. -
Question:
Where can I buy Jack's Professional 15-5-15 CA-MG LX Comprehensive Water-Soluble Fertilizer?
Answer: You can purchase Jack's Professional 15-5-15 CA-MG LX Comprehensive Water-Soluble Fertilizer from Ubuy. They offer a reliable and convenient platform to order this product, ensuring safe delivery to your location. Ubuy is known for its user-friendly shopping experience, making it easy for you to find the products you need for your gardening needs.
Jack's Classic Fertilizers & Plant Food 77940 Editorial Review
The Jack's Professional Calcium Magnesium LX 15-5-15 Fertilizer seems to have mixed reviews from customers. One reviewer was disappointed as they received a damaged bag with signs of fertilizer spilling out. Another reviewer expressed uncertainty about the legitimacy of the product after not seeing any immediate results in their plants. However, there were positive comments from customers who found the fertilizer effective once they calculated the dosage correctly. Users reported that the fertilizer works well with plants like Phalaenopsis and Cattleyas, providing elevated levels of calcium and magnesium. Some customers also mentioned that it works great on various plants with few additional products needed. Overall, the Jack's Professional Calcium Magnesium LX 15-5-15 Fertilizer appears to be a reliable product for plant care, with some users experiencing positive results once they understood how to use it effectively. **
Customer Reviews & Ratings
22 customers ratings
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5 Star
80%
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4 Star
0%
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3 Star
7%
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2 Star
13%
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1 Star
0%
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Pros
- Clean fertilizer with minimal urea
- Provides elevated levels of calcium and magnesium
- Works well with specific plant varieties like Phalaenopsis and Cattleyas
- Effective for various plants with minimal additional products needed
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
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fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
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“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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SCR 1575
Order now and get it around Thursday, September 17
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.)
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Fastest cross-border delivery
Features & Benefits
- Improved plant performance due to effective chelating system
- Dissolves faster, resulting in less caking
- Comprehensive fertilizer with all macro and micro nutrients in one tank
- Powdered concentrate goes further than liquid fertilizers
- Continuous liquid feed program for hydroponic systems
- Added micronutrients for optimal growth and health
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