Dutchfest Grow A+B | Professional Vegetative Nutrient for Hydroponic Systems

The vegetative phase determines the structural foundation of every harvest. Canopy size, branching density, root development, and the number of viable flower sites are all established before a single flower forms. Dutchfest Grow A+B is the vegetative component of the Dutchfest 2-part system, formulated for Australian water profiles and trusted by serious hydroponic growers across the country for over two decades.

Available as a standalone A+B set for growers who want to buy the vegetative and flowering stages separately, or who need to restock just the Grow formula without purchasing the full system again.

What Dutchfest Grow Delivers

The nitrogen profile in Dutchfest Grow drives rapid leaf production, thick stem development, and the dense branching structure that maximises light penetration and flower site count going into bloom. High-bioavailability chelated minerals ensure consistent uptake across a wide range of water qualities, which is particularly relevant in Australia where tap water EC and mineral content varies significantly between Melbourne, Sydney, Adelaide, and regional areas.

Internode spacing is one of the most important variables in the vegetative phase and one of the hardest to control with generic nutrient formulas. Dutchfest Grow is specifically formulated to support compact internode development, producing bushy, structured canopies rather than the stretched, open growth that reduces yield potential and light efficiency.

How to Use Dutchfest Grow

Always add Part A to your reservoir first and circulate thoroughly before adding Part B. Never combine Part A and Part B in concentrated form as this will cause precipitation. Add Part B after Part A has mixed, stir again, then check EC and pH before feeding.

Target pH range is 5.5 to 6.2 for optimal nutrient uptake. Start at a lower EC during early vegetative growth and increase gradually as plants develop and root systems establish. Dutchfest Grow is compatible with rockwool, clay pebbles, perlite, coco coir, and soil-based indoor growing systems.

When plants are ready to transition into flower, switch to Dutchfest Bloom A+B to shift the nutritional emphasis toward phosphorus and potassium-driven flower development.

Buying Grow and Bloom Separately

Dutchfest Grow and Bloom are available individually for growers who run through one formula faster than the other, which is common in extended vegetative periods or when managing multiple plants at different growth stages simultaneously.

If you are setting up the full Dutchfest program for the first time, the Dutchfest Grow and Bloom twin pack provides both formulas together and is the most cost-effective starting point. For precise EC and pH management, the Bluelab Combo Meter measures both parameters simultaneously and is well-suited to managing a 2-part nutrient program.

Product Details

Brand: Dutchfest
Formula: Grow A+B — Professional 2-Part Vegetative Nutrient
Available sizes: 1L, 5L, 20L (A+B set)
Compatible with: Rockwool, clay pebbles, perlite, coco coir, soil
Target pH: 5.5 to 6.2
Use: Vegetative phase through to pre-flower transition

Frequently Asked Questions

How do I mix Dutchfest Grow A+B correctly?

Always add nutrients to water, never add water to concentrated nutrients. Fill your reservoir with the target volume of fresh water first, then add each part of Dutchfest Grow A+B separately, stirring between additions. If using a multi-part formula, add micro or Part A first, then grow or bloom, then any additives. Measure pH and EC after mixing and adjust to your target range — typically 5.8–6.2 pH and 1.4–2.2 EC for most crops.

What is the shelf life of Dutchfest Grow A+B?

Unopened, Dutchfest Grow A+B has a shelf life of 2 years when stored in a cool, dark location out of direct sunlight. Once opened, use within 12 months. Shake or stir well before each use as some formulations can settle. Do not freeze concentrated nutrients as this can cause precipitation of minerals that will not fully redissolve.

Can I use Dutchfest Grow A+B in soil as well as hydroponics?

Dutchfest Grow A+B is formulated for hydroponic systems but can be used for soil and coco growing at adjusted rates. Soil typically requires lower EC than hydro or coco as nutrients are buffered by the growing medium. Start at 50–70% of the recommended hydroponic dose when applying to soil and increase based on plant response.

How do I dispose of leftover nutrient solution made with Dutchfest Grow A+B?

Dilute spent nutrient solution with water and use it to water outdoor garden beds or lawns — it is an excellent fertiliser for outdoor plants. Avoid disposing of large volumes directly into storm drains. In residential situations, diluted nutrient runoff down a household drain is acceptable in small quantities.

Does Dutchfest Grow A+B ship fast within Australia?

Yes — Dutchfest Grow A+B ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.