Green Planet Horti Cal 2.3kg | 14-0-0 Calcium & Magnesium Dry Fertilizer | High-Nitrogen Supplement for Hydroponic & Soil Crops

Horti Cal is a fully water-soluble, commercial-grade fertiliser that delivers 14 % nitrogen plus readily available calcium and magnesium from the first true leaf to the final flush.

Its sediment-free formula flows cleanly through day tanks, injectors, and drip lines, encouraging rapid cell formation, stronger stems, and maximised nutrient uptake for leafy greens, fruiting crops, and ornamentals. 

Key Features

• 14-0-0 NPK ratio fuels vigorous vegetative growth while supporting high metabolic demand in bloom
• Calcium + magnesium fortify cell walls, enhance photosynthesis, and prevent blossom-end rot, tip burn, and leaf chlorosis 
• Fully soluble, pH-stable powder—no clogging, no residue, fast uptake 
• Compatible with the complete HORTI Feeding Program and most base nutrient lines 
• Suitable for hydroponics, coco coir, and traditional soil gardens

How to Use

Dissolve Horti Cal thoroughly in clean water before adding other nutrients. Follow your preferred feed chart or Green Planet’s HORTI schedule, adjusting EC/ppm to crop requirements. Keep solution agitated and monitor reservoir pH regularly for best results.

Usage - Quick Start Guide For Hand watering & Reservoirs

• 71 g / 100 L
• 0.7 g/L

Guaranteed Analysis

Total Nitrogen (N) ………… 14 %
Calcium (Ca) ………………… 10 %
Magnesium (Mg) …………… 2 %

Why You Must Buy

Horti Cal streamlines crop nutrition by combining fast-acting nitrogen with readily available calcium and magnesium in one clean, clog-free mix, eliminating common deficiency-related yield losses while promoting thicker stems, healthier foliage, and heavier, higher-quality harvests—all without pH instability or emitter blockage.

FAQs

Is it safe for seedlings?
Start at 25 % strength and increase gradually as plants establish.

Does it replace my base fertiliser?
No—it complements your existing program by adding extra N, Ca, and Mg.

Can I use it in organic systems?
Horti Cal is mineral-based; confirm suitability with your certification body.

Will it stain reservoirs or emitters?
No—its sediment-free formulation stays fully soluble when mixed properly.

How should I store it?
Keep the pouch sealed in a cool, dry place to prevent moisture absorption.