Terra Aquatica TriPart Grow | Vegetative Nutrient for the 3-Part Hydroponic System

The vegetative phase sets the ceiling for every harvest that follows. Root mass, stem structure, internode spacing, branching density, and leaf area are all determined before a single flower forms. TriPart Grow gives you precise control over this phase with a nitrogen-forward formula engineered specifically for vigorous, healthy vegetative development. It is Part 2 of the Terra Aquatica 3-part system, used alongside TriPart Micro and Bloom across all hydroponic and growing media types.

What TriPart Grow Delivers

TriPart Grow delivers high nitrogen alongside phosphorus, potassium, and secondary nutrients to drive strong vegetative growth when used in combination with TriPart Micro. As plants transition into flowering, the ratio of Grow is progressively reduced and Bloom is increased, shifting the nutritional emphasis from vegetative development toward bud formation and density. This ratio adjustment is the core advantage of the 3-part system over single-part or 2-part nutrients.

More Grow in the reservoir means more nitrogen, more leaf area, more stem development, and faster canopy expansion. Less Grow as plants flip to flower and the same plants redirect energy toward bud development rather than vegetative structure. This is how professional cultivators manage their crops at scale across Australia and globally, and it is available in every bottle of TriPart.

Why the 3-Part System Outperforms 1-Part and 2-Part Nutrients

A 1-part nutrient gives you a fixed NPK ratio that cannot be adjusted for strain, system type, or growth stage. A 2-part system gives you some flexibility at the vegetative to flowering transition. The TriPart 3-part system gives you continuous ratio control at every point in the grow cycle.

Growers running fast-growing cultivars with high nitrogen demand can increase the Grow ratio in early veg. Growers managing compact, low-stretch plants can reduce it. Growers pushing for maximum terpene and resin production in flower can dial down nitrogen more aggressively going into late bloom than a 2-part system allows. This is the practical advantage of 3-part nutrient management, and TriPart Grow is the lever that drives it.

How to Use TriPart Grow

Always add TriPart Micro to your reservoir first, then TriPart Grow, then TriPart Bloom. Stir between each addition. Never add the concentrates together directly. Check and adjust pH after mixing to your target range - 5.5 to 6.5 for hydroponic systems, 6.0 to 7.0 for soil and coco.

Typical ratios from the Terra Aquatica feed chart, per 10 litres of water:

Seedling and clone: 4ml Micro + 1ml Grow + 1ml Bloom
Vegetative: 3ml Micro + 3ml Grow + 1ml Bloom
Early flower: 3ml Micro + 2ml Grow + 3ml Bloom
Peak flower: 3ml Micro + 1ml Grow + 5ml Bloom

TriPart Grow is available in soft water and hard water formulations to suit your local Australian water supply. The soft water version is the correct choice for most Melbourne, Sydney, and south-east Queensland tap water. The hard water version suits Adelaide and areas with higher baseline mineral content in source water.

Compatible Growing Systems

TriPart Grow works across DWC, NFT, recirculating drip, ebb and flood, coco coir, and hand-watered soil and soilless mixes. For accurate EC and pH management across all three parts, the Bluelab Combo Meter measures all three parameters simultaneously and is the most reliable tool for managing a precision 3-part nutrient program.

Frequently Asked Questions

Do I need all three parts of TriPart or can I just use Grow? All three parts are required. TriPart Grow does not contain the micronutrients and calcium in TriPart Micro, which are essential for nutrient uptake. Using Grow without Micro will produce deficiencies regardless of the dose rate.

How much TriPart Grow do I use in coco coir? Coco growers typically use the same ratios as hydroponic systems and run a slightly higher EC than soil. Start at the lower end of the target EC range and increase based on plant response. Some coco growers supplement with additional calcium and magnesium when using RO or very soft water.

Is TriPart Grow the same as General Hydroponics Flora Grow? Yes. Terra Aquatica was formerly the European division of General Hydroponics and uses the same core formulation principles. TriPart Grow maps directly to Flora Grow. The products are functionally equivalent.