Green Planet GPH Uptake – Humic Acid Soil & Hydroponic Root Enhancer (Clearance)

Green Planet's GPH Uptake is a concentrated humic acid additive designed for both soil and soilless growing media. It maximises nutrient absorption and provides an energy source for beneficial microorganisms — supporting stronger root development and more efficient feeding throughout the growing cycle.

NPK: 0 – 0.04 – 0.05

Humic Acid: 8% concentrated

Available Phosphate: 0.04% | Soluble Potash: 0.05%

How It Works

Humic acid is a key component of humic substances naturally found in soil and organic matter. As a complex mixture of organic acids, it improves cation exchange capacity, chelates minerals, and unlocks nutrients that would otherwise remain unavailable to plants — making every feed go further.

Application Tips

• Suitable for soil and soilless media — not suitable for use as a foliar spray
• For hydroponics, Green Planet recommends GPF; GPH is formulated for soil and soilless systems
• Start at half the recommended dosage and adjust based on plant response
• Always pre-mix with fresh water before adding to your nutrient tank

Clearance Stock — Limited Availability

This product is part of our clearance range. Stock is limited — once it's gone, it's gone.