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Jack's Professional 25-5-15 High Performance Water-Soluble Fertilizer with Micronutrients for Heavy Feeding Plants in Continuous Liquid Feed
GBP 78
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Maximize your NPK delivery with this high-efficiency fertilizer formula
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What Stands Out
Product Details
- High efficiency formula maximizes NPK delivery for optimal plant growth
- Balanced macro secondary and micronutrients for plant growth
- Ideal continuous feed for heavy feeding plants in moderate to warm temperatures
- Comparable micronutrient levels to peat lite formulas
- Functions as a nutrient booster for great green up in almost all plant varieties
- Available in a 25-pound bag
| Brand Name | Jack's Classic |
| Model Number | 77900 |
| Global Trade Identification Number | 00671341779001 |
| Manufacturer | JR Peters |
| Number of Items | 1 |
| UPC | 671341779001 |
| Unit Count | 400.0 Ounce |
| Part Number | 77900 |
| Item Weight | 25 Pounds (11.34 kg) |
| Item Form | Powder |
| Specific Uses For Product | Plant Growth |
| Coverage | Medium |
| Target Species | heavy feeding plants, bedding plants, vegetable transplants |
| Mixing Ratio | 25:5:15 |
| Brand | Jack's Classic |
Who Should Buy?
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Vegetable Gardeners
Ideal for vegetable gardeners looking to enhance growth and yield for heavy feeding plants like tomatoes and peppers.
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Professional Growers
Perfect for commercial growers needing a reliable, high-performance fertilizer for continuous liquid feeding programs.
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Hydroponic Systems
Great for hydroponic setups as it provides essential nutrients and micronutrients for thriving plants.
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Small Gardeners
Not suitable for small gardeners with limited space who may over-fertilize and harm sensitive plants.
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Organic Growers
May not meet the needs of organic growers seeking natural fertilizers that comply with organic standards.
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Low Maintenance Plants
Not ideal for low-maintenance plants that require minimal fertilization and care, potentially leading to nutrient burn.
Product Description
Customer Questions & Answers
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Question:
What type of plants benefit most from Jack's Professional 25-5-15 fertilizer?
Answer: Jack's Professional 25-5-15 fertilizer is specifically formulated for heavy feeding plants, such as fruits, vegetables, and ornamental plants. Its balanced nutrient composition supports vigorous growth, lush foliage, and optimal flowering. This product's high nitrogen content promotes robust vegetative growth, while balanced potassium and phosphorus levels enhance root development and fruiting. For gardeners looking to maximize their yields in crops like tomatoes or peppers, or to achieve stunning blooms in flowering plants, this water-soluble fertilizer is an excellent choice. -
Question:
How should I mix and apply Jack's Professional fertilizer?
Answer: To use Jack's Professional 25-5-15 fertilizer, mix it according to the instructions on the label, typically dissolving a specified amount in water. This allows the nutrients to become readily available for your plants. Application can be done using a watering can or a sprayer for foliar feeding. Regular applications—often every one to two weeks during the growing season—ensure your plants continuously receive essential nutrients. This method is particularly effective for container gardening, as it prevents nutrient depletion in potted plants. -
Question:
Are there any plants that should not be fertilized with this product?
Answer: While Jack's Professional 25-5-15 fertilizer is suitable for many heavy feeding plants, care should be taken with delicate or low-nutrient plants like succulents and certain houseplants. These species have different nutrient requirements and may be sensitive to high nitrogen levels. For optimal results, consider using this fertilizer primarily on plants that thrive with enhanced nutrient input, ensuring health and growth without the risk of over-fertilizing more sensitive varieties. -
Question:
Can I use this fertilizer indoors as well as outdoors?
Answer: Yes, Jack's Professional 25-5-15 fertilizer can be utilized both indoors and outdoors. For indoor plants, it provides a boost of nutrients that is beneficial in controlled environments where traditional soil nutrients may be limited. When using indoors, ensure proper ventilation and avoid prolonged leaf wetness to minimize the risk of fungal diseases. For outdoor use, it’s ideal for raised beds and container gardening, where consistent nutrition supports abundant plant growth and vitality throughout the season. -
Question:
What are the micronutrients included in this fertilizer and why are they important?
Answer: Jack's Professional 25-5-15 includes essential micronutrients such as iron, magnesium, and manganese. These elements play a crucial role in plant metabolism, enzyme functions, and chlorophyll production. Micronutrients are vital for preventing deficiencies that can lead to stunted growth or poor flowering. For example, iron deficiency can cause chlorosis, leading to yellowing leaves, while magnesium supports photosynthesis, directly impacting plant vigor. Including these micronutrients ensures your plants have a well-rounded diet for robust health. -
Question:
How often should I fertilize my plants with Jack's Professional 25-5-15?
Answer: For optimal results, it's recommended to apply Jack's Professional 25-5-15 fertilizer every one to two weeks during the active growing season. This frequency can vary based on specific plant needs, growth conditions, and soil nutrient levels. Regular application supports sustained health and growth, especially for heavy feeders. During the dormancy period of plants, reduce the frequency or halt fertilization altogether to prevent nutrient build-up that could harm the roots. -
Question:
Is Jack's Professional 25-5-15 fertilizer safe for pets and children?
Answer: While Jack's Professional 25-5-15 fertilizer is designed for plants, it’s important to keep it out of reach of pets and children, as with any garden product. Following the manufacturer's application guidelines and ensuring proper storage can mitigate risks. It’s wise to apply fertilizers in a well-ventilated area and to wash hands thoroughly after handling. By maintaining safe practices while using this fertilizer, you can ensure a healthy growing environment for both plants and your home. -
Question:
What’s the difference between water-soluble and granular fertilizers?
Answer: Water-soluble fertilizers like Jack's Professional 25-5-15 offer the advantage of being quickly absorbed by plants, making nutrients immediately available for uptake. This is ideal for heavy feeding plants needing rapid growth. Granular fertilizers, while effective, often take longer to break down and release nutrients. They are typically used in soil where prolonged feeding is desired. Choosing between the two depends on your plants’ nutrient needs, growth stage, and the desired speed of nutrient availability. -
Question:
Can this fertilizer be mixed with other plant nutrients?
Answer: Jack's Professional 25-5-15 fertilizer can be mixed with other compatible water-soluble nutrients, but it's essential to check compatibility guidelines to avoid nutrient lock-up or imbalances. Additionally, consider the specific needs of your plants when combining fertilizers. For instance, if you’re aiming for enhanced flowering, you might couple it with a bloom booster. Always test mixtures on a small scale initially, as over-fertilization can damage plant health. -
Question:
Where can I buy Jack's Professional 25-5-15 High Performance Water-Soluble Fertilizer?
Answer: You can purchase Jack's Professional 25-5-15 High Performance Water-Soluble Fertilizer with Micronutrients from Ubuy in UK. Ubuy offers a variety of gardening products, ensuring you have access to quality fertilizers and solutions for your gardening needs. Their platform provides an easy way for you to find and order this high-performance fertilizer conveniently.
Jack'sClassic Fertilizers & Plant Food 77900 Editorial Review
J R Peters Inc Jacks Prof 77900 High Performance Fertilizer is a quick-acting, commercial fertilizer used in greenhouse plant production. This fertilizer is not organic but contains essential nutrients for plant growth. The 25-5-15 ratio is not the right one for tomatoes, but it can be used for a lot of different plants and vegetables, including lawns, fruit trees, herbs, annuals, and perennials. It dissolves easily and contains micronutrients as well. Customers reported noticeable green growth within 7-10 days of applying, but caution needs to be exercised when applying to young, potted, or recently planted plants. This fertilizer also keeps deer off young fruit trees. One customer reported the death of flowers after applying sporadically.
Customer Reviews & Ratings
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5 Star
83%
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4 Star
7%
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3 Star
4%
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2 Star
4%
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1 Star
2%
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Pros
- Quick-acting
- Can be used for a variety of plants and vegetables
- Dissolves easily
- Contains micronutrients
- Helps keep deer off young fruit trees
Cons
- Not the right fertilizer ratio for tomatoes
Product Price History
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GBP 78
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Features & Benefits
- Balances macro, secondary, and micronutrients for optimal plant growth
- Ideal as a continuous feed for heavy feeding plants in moderate to warm temperatures
- Comparable micronutrient levels to peat lite formulas
- Great green up nutrient booster for nearly all varieties
- Available in 25-pound bags






