ICL Peters Cal Mag Special
Best nutrient solution for professional growers managing peat-based ornamental crops.
This is the gold standard for growers battling soft water who need to keep plants compact and vibrant. By packing three types of chelated iron into a perfectly soluble formula, it trades the simplicity of all-in-one pellets for the precision control required to achieve professional-grade color and structural health.
$51.03
at
Steve Regan Company
Who it's for
- Growers aiming to prevent blossom end rot and tip burn
- Hydroponic users requiring clog-free irrigation and nutrient delivery
- Gardeners managing fluctuating soil or water pH levels
Who should skip it
- Beginners seeking a simple, all-in-one fertilizer solution
- Budget-conscious hobbyists looking for basic nutrient supplements
- Inexperienced growers prone to over-fertilizing their plants
Performance breakdown
Nutrient Solubility
Dissolves completely without leaving residue in irrigation or spray equipment.
Foliage Color Enhancement
Black iron chelation delivers noticeably deeper, more vibrant leaf pigmentation.
Application Versatility
Seamlessly transitions between foliar feeding, soil drenching, and hydroponic systems.
Growth Regulation
High nitrate formulation effectively prevents leggy, stretched stems in low light.
Hard Water Correction
Specifically engineered to balance nutrition in challenging soft water environments.
Mineral Purity
Clean, ballast-free formula prevents salt buildup in peat-based growing media.
Key Specs
Package Weight
25 lb.
Solubility
100% water soluble
Formulation
Pure, no ballast substances
Iron Content
Contains three chelated irons, including black iron
SKU/Model Identifier
G99145
NPK Ratio
15-5-15
Formulation
Water Soluble Powder
Release Type
Fast Release
Application Methods
Foliar Spray, Soil Drench
Nitrogen
15%
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