Dutch Pro Autoflower Grow Hydro/Coco A&B SW — Professional Two-Part Nutrients for Fast-Finishing Plants
Best for: Growers running autoflowers or fast-finishing varieties in hydro or coco systems with soft water supply
Our thoughts
Fast-finishing plants don't give you a second chance in the early phase. This formulation gets that. Dutch Pro's spent 30 years on growing methods, and it shows — the Soft Water version is specifically balanced for UK water chemistry, meaning you're not fighting deficiencies from day one. It's the kind of detail that separates working nutrients from proper ones.
Dutch Pro Autoflower Grow Hydro/Coco A&B SW is a professional two-part nutrient system designed specifically for fast-finishing plant varieties grown in hydroponic or coconut coir systems. The SW (Soft Water) formulation is optimised for water supplies containing less than 100 mg/l of calcium carbonate — standard for most of the UK.
The key here is specialisation. Autos and fast-cycle plants have different nutritional demands than standard varieties because they need to hit their targets faster. This nutrient is built around that timeline, delivering balanced macro and micronutrients that keep early growth steady without waste. Two-part systems give you more control over what your plants receive, which matters when every day counts.
How it compares
Dutch Pro sits in the professional-grade mid-tier of two-part growing nutrients, positioned between entry-level and premium brands.
- Specialist formulation for fast-finishing varieties — most competitors offer generic veg feeds
- Soft Water variant included — most brands assume hard water, which causes early imbalances in UK setups
- Separate Autoflower Bloom formula available, creating a proper two-stage programme
- Dutch heritage and 30-year development pedigree without premium packaging markup
- Two-part system delivers more available micronutrients than one-part formulas due to chemical stability
Usage guidance
Mixing and dosing
Add 2.5 to 3.5 ml per litre of both Part A and Part B to your water. Use a syringe or measuring beaker for accuracy. Always add Part A first, mix thoroughly, then add Part B. Never mix the concentrates together directly. Monitor your EC or PPM using a quality meter like a Bluelab Truncheon — this keeps you in control.
For hydroponic systems
Mix into your reservoir and run at the recommended strength. Two-part systems work cleanly in hydro because they're fully dissolved, meaning no blockages or settling issues.
For coconut coir
Apply with your normal watering routine. Coco buffers nutrients differently to soil, so this formulation compensates for that. Aim for consistent EC rather than chasing strength.
Feeding window
Use this Grow formula from early vegetative growth through the main growing phase. Switch to Dutch Pro Autoflower Bloom when plants show sex or at the transition point for your setup.
Water chemistry note
This is the Soft Water version. If you're in a hard water area (parts of the Midlands, South East, or Wales), you'll need the HW variant instead. Using the wrong one creates mineral imbalances that slow growth.
Technical specifications
- Type: Two-part liquid nutrient concentrate (Part A and Part B)
- Application: Hydroponic and coconut coir systems
- Formulation: Soft Water optimised (below 100 mg/l calcium carbonate)
- Recommended dosage: 2.5 to 3.5 ml/litre of Part A and Part B
- Mixing ratio: 1:1 (equal parts A and B)
- Nutrient profile: Balanced macro and micronutrient blend designed for fast-finishing plant growth phase
- Monitoring: EC/CF/PPM meter essential for proper strength management
- Complementary products: Dutch Pro Multi Total, Take Root, Keep It Clean recommended for optimised results
Who this is for
- Growers running autoflowers or fast-cycle varieties where every day matters
- Hydroponic system users who want clean, dissolved nutrition without settling or blockage risk
- Coco growers seeking a formulation that accounts for coco's nutrient binding characteristics
- UK-based growers in soft water areas (most of the country) who want chemistry matched to their water supply
- Intermediate to advanced growers comfortable with two-part mixing and EC monitoring
- Anyone who values professional growing methods and Dutch growing heritage over brand packaging
Our take
Dutch Pro Autoflower Grow is a properly engineered nutrient system, not a generic feed dressed up as specialist. The soft water formulation shows they've thought about UK growing conditions, and the fast-finishing plant focus proves they understand the actual pressures of early-cycle nutrition. You're paying for formula quality, not fancy branding.
If you're serious about running autos or fast-finishing varieties in hydro or coco, this is worth picking up while stock lasts. Pair it with the Bloom formula at transition and you've got a proper two-stage programme built for speed.
