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Jack's
Jack's Professional High Performance 25-5-15

Jack's Professional High Performance 25-5-15

5(2 ratings)

Best price now

$47.80at Greenhouse MegastoreChecked Nov 12

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Price facts

  • Last seen at $47.80 at Greenhouse Megastore on Nov 12.

Our take on the Jack's Professional High Performance 25-5-15

Jack's Professional 25-5-15 is a water-soluble fertilizer built for bedding plants and vegetable transplants, with a high-nitrogen ratio plus secondary and micronutrients. It is urea-free and carries an acidic reaction of 608 lbs CCE per ton, which suits growers on alkaline water or media. Compared with general-purpose 20-20-20 blends, it pushes more nitrogen for vegetative growth and less phosphorus, and the urea-free nitrate/ammonium nitrogen gives steadier feeding. It is a grower-grade product for scheduled fertigation, not a one-off garden feed.

Best forGreenhouse bedding plant productionVegetable transplant startingGrowers with alkaline water or mediaScheduled fertigation programs
Pros
  • High nitrogen ratio drives vegetative growth and transplant establishment
  • Urea-free nitrogen sources
  • Includes secondary and micronutrients, not just NPK
  • Acidic reaction helps offset alkaline water
  • Water-soluble and made for injector feeding
Cons
  • Low phosphorus ratio is a poor fit for bloom or root-focused feeding
  • Not a standalone program; needs a calcium or micronutrient plan
  • Designed for commercial dosing, not casual hand watering
  • Acidic reaction can push pH too low in already-acidic media

Jack's Professional High Performance 25-5-15 prices at every store

  • Greenhouse MegastoreNew

    In stockReturn policy

    $47.80Checked Nov 12
    Visit Greenhouse Megastore

About the Jack's Professional High Performance 25-5-15

Jack's Professional High Performance 25-5-15 is a fertilizer with a high-efficiency formula. It is designed to maximize NPK delivery while keeping a balance of macro, secondary and micronutrients for optimum plant growth.

The formula delivers balanced nutrition even when you use less fertilizer. It contains no urea and is acidic. It is for use on all bedding plants and vegetable transplants.

NPK ratio
25-5-15
Use on
All bedding plants and vegetable transplants
Acidity
Acidic, 608 lbs CCE
Urea
None

Questions and answers

What is Jack's 25-5-15 used for?
It is a water-soluble feed for bedding plants and vegetable transplants. The 25-5-15 ratio favors vegetative growth and establishment over flowering or rooting.
Does it contain urea?
No. The formula is urea-free, so its nitrogen comes from nitrate and ammonium sources rather than urea.
How does it compare with Jack's 20-20-20?
25-5-15 pushes more nitrogen and much less phosphorus. Use it for green growth and transplant stage; 20-20-20 is the more balanced general feed.
What does the 608 lbs CCE acidity mean?
It is the potential acidity of the fertilizer, a measure of how much it acidifies growing media over time. It helps with alkaline water but can drive pH down in low-pH media.
Can I use it on flowering plants?
It will keep plants green, but the low phosphorus ratio is not aimed at bloom or fruit production. Switch to a higher-phosphorus or balanced formula for that stage.
Is it for home gardeners or commercial growers?
It is a professional water-soluble product dosed through injectors or mixing tanks. Home gardeners can use it, but it needs careful measuring and a calcium source in the program.
Where is the Jack's Professional High Performance 25-5-15 cheapest?
At Greenhouse Megastore, for $47.80, as of our latest check.
What do buyers say about the Jack's Professional High Performance 25-5-15?
Rated 5 out of 5 from 2 ratings.

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