JR Peters Jack's Professional Fertilizer
Best balanced nutrient solution for serious indoor and outdoor gardeners.
This is the gold standard for growers who want a no-nonsense, high-performance feed that works on everything from houseplants to garden beds. You sacrifice the simplicity of granular spikes for the precision of a water-soluble concentrate, but the trade-off is unmatched, consistent growth across your entire collection.
$63.99
at
Greenhouse Megastore
Who it's for
- Gardeners managing diverse plant collections with one simple solution
- Commercial growers needing clog-free irrigation and fast nutrient delivery
- Plant enthusiasts seeking to prevent common nutrient deficiencies
Who should skip it
- Specialized growers requiring targeted ratios for fruiting or rooting
- Busy gardeners preferring low-maintenance, slow-release feeding schedules
- Budget-conscious hobbyists looking for basic, entry-level plant food
Performance breakdown
Nutrient Balance
The classic 20-20-20 ratio provides reliable, all-around support for diverse gardens.
Solubility Speed
Dissolves rapidly in water for seamless integration into liquid feeding systems.
Application Versatility
Equally effective for indoor foliage, outdoor vegetables, and expansive lawn areas.
Micronutrient Density
Essential trace elements ensure plants receive a complete, well-rounded nutritional profile.
Feeding Consistency
Formulated for steady, predictable growth during continuous liquid feeding programs.
Value Density
The 25-pound concentrate format offers exceptional longevity for high-volume gardening needs.
Key Specs
NPK Ratio
20-20-20
Form
Water-Soluble Powder
Package Weight
25 lb
Release Type
Slow Release
Season of Use
All Season
Application Method
Drench
Water Soluble
Yes
Pet Child Safe
No
Fertilizer Form
Water Soluble Powder
Nitrogen Percentage
20%
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