Still guessing which bottle to pour—or when? Stop the nutrient roulette. Below is your definitive, start-to-finish roadmap for explosive growth with Professor’s Nutrients.
Whether you run coco, rockwool, DWC or a hybrid setup, this guide distills 20 years of Aussie R&D into one crystal-clear plan. Ready to harvest weight, flavour and bag appeal that shout “pro-grower”? Let’s dive in.
Table of Contents
- Meet Professor’s Nutrients & Why It Wins
- The Line-Up Explained
- Professor's Nutrients Integrated Feeding Schedule
- Pro Tips & Common Pitfalls
- Frequently Asked Questions
-
Why Buy from Dr Greenthumbs?
- Next Reads for Dialing In Your Hydro Feed Chart
If you want the quickest way to follow this feed chart without guesswork, these tools make it much easier:
Meet Professor’s Nutrients & Why It Wins
- Lab-grade inputs, zero fillers: every bottle is packed with chelated minerals for rapid uptake.
- One base, two parts: Original Part A & B provide the core base nutrition in the main feeding program. Follow the integrated schedule below for the correct stage-specific dosage.
- Eco-conscious credentials: certified organic options mean cleaner produce and a lighter footprint.
- Versatile: compatible with drip, flood-and-drain, recirculating DWC and living-media hybrids.
The Line-Up Explained
Core Nutrition
Original Part A & B provide the core base nutrition used throughout the main feeding program. Exact dosage is shown in the integrated feed schedule below.
Propagation & Root-Zone Support
- Cloning Accelerator – vitamin-rich foliar mist for rock-solid cuttings.
- Starter Soak – gentle NPK + kelp dunk that pre-charges cubes.
- Go Roots – systemic fungicide with humic/fulvic to explode feeder roots.
Cloning Accelerator and Starter Soak are propagation tools rather than standard reservoir-feed columns in the schedule below. Go Roots is included in the integrated schedule where applicable.
Vegetative Growth & Ongoing Plant Health
- Grow Fast – high-N + Ca/Mg to pack on biomass fast.
- Go Green – instant Cal-Mag-Fe fix for soft-water or coco growers.
Early Bloom Builders
Flower Boost – PK 10-8.7 shot that triggers explosive bud set.
Peak Bloom & Ripening
- Extreme Boost – ultra-concentrated PK powder for density and brix.
- Carbo Boost – simple sugars that feed microbes and swell essential oils.
Finishing & Flushing
Ultra Flush – chelates residual salts for a clean, terpene-rich finish.
Professor's Nutrients Integrated Feeding Schedule
Before using the chart: Monitor runoff EC and adjust gradually rather than making large feed-strength changes. Keep pH within the confirmed range for your growing medium. Reservoir cleaning and EC-management guidance is covered under Pro Tips & Common Pitfalls below.
Propagation note: Cloning Accelerator is used as a foliar product for cuttings, while Starter Soak is used to pre-charge propagation media. They are therefore not represented as standard reservoir-feed doses in this table. Follow their individual product directions during propagation.
| Stage | Week | A & B (mL / L) | Go Roots | Go Green | Grow Fast | Flower Boost | Extreme Boost | Carbo Boost | Ultra Flush | Target EC |
|---|---|---|---|---|---|---|---|---|---|---|
| Propagation | 1-2 | — | — | — | — | — | — | — | — | — |
| Veg | 1 | 2.5 | 0.25 | 2 | — | — | — | — | — | 1.8+ |
| 2 | 2.2 | 0.25 | 2 | 2.5 | — | — | — | — | 2.0 | |
| 3-5 | 2.2 | 0.25 | 2 | 2.5 | — | — | — | — | 2.0 | |
| Bloom | 1-4 | 2.6 | 0.25 | 2 | — | 2 | — | — | 3 mL/L (Wk 1) | 2.0 |
| 5 | 2.6 | 0.25 | 2 | — | 2 | — | — | — | 2.2 | |
| 6-7 | 3.4 | 0.25 | 2 | — | — | 0.5 g/L | 2 | — | 2.4 | |
| 8 | 2.0 | 0.25 | — | — | — | — | 2 | — | 1.8 | |
| Flush | 9 | Water only | — | — | — | — | — | — | 3 mL/L (all week) | 0 |
Pro Tips & Common Pitfalls
- Add additives before the base nutrients. Mix each additive thoroughly before adding Original Part A & B, then adjust the final solution to the target EC shown in the schedule.
- Follow the product windows in the feed chart. Do not continue products into later stages simply because they are already in your nutrient cupboard. The integrated schedule should be your timing reference.
- Dial EC gradually. If plants appear ready for a stronger feed, adjust total EC in small steps rather than dramatically increasing one additive. Use the target EC column as the starting reference.
- Keep the nutrient solution cool and aerated. Maintain the existing recommended solution temperature of 20–24 °C and avoid stagnant reservoirs.
- Reset the reservoir regularly. Dump, rinse and refill the reservoir every 7 days to reduce nutrient drift and bio-film. Mid-week top-ups are fine, but a full reset keeps nutrient ratios more predictable.
Frequently Asked Questions
Can I run Original A & B in soil?
Yes—cut the dosage to 50 % and water to 10-20 % runoff to avoid salt build-up.
What pH range works best in coco?
For coco, use the tighter 5.8–6.2 target. The broader pH range referred to elsewhere in the guide applies across a wider range of hydroponic systems rather than being the preferred coco target.
Is Ultra Flush really necessary if my runoff EC is low?
Ultra Flush is part of the finishing strategy shown in the verified feed schedule above. Follow the schedule and product directions rather than adding or removing it solely because one runoff EC reading happens to be low.
Why Buy from Dr Greenthumbs?
- Price-match promise on the entire Professor’s range.
- Same-day dispatch Australia-wide for orders placed before 2 pm.
- Grow-room support via live chat and in-store consultations.
- Bundle deals that stack savings when you grab the full lineup.
Put theory into practice and watch your yields skyrocket. Shop the Professor’s Nutrients collection now and start feeding plants the science-backed way.
Official feed chart: View the Professor’s Nutrients Feed Chart & Product Guide for the manufacturer’s full reference chart and product information.
Next Reads for Dialing In Your Hydro Feed Chart
Still fine-tuning your nutrient mix? These guides will help you lock in pH, EC, additives and base feeds for cleaner, more predictable results.
- Hydroponic pH Control Australia
- How to Balance EC in Hydroponic Reservoirs
- Hydroponic Nutrients & Additives Guide Australia 2026
- A & B Nutrients Hydroponics Australia Guide
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