Description
Quick Answer
PROFESSORS ORGANIC GROW FAST is an OFC-approved organic vegetative-stage booster for growers who need additional nitrogen during early plant development. Its typical analysis is 3.9% nitrogen, 0.744% phosphorus and 0.951% potassium. Mix 2–4mL per litre of water from the second week of vegetative growth until flowering begins. Do not use during flowering.
Product Description
Professor's Organic Grow Fast is a liquid vegetative booster formulated with multiple nutrient sources for organic growing programs. The manufacturer describes it as suitable for soil, coco and hydroponic systems and confirms that its organic range carries the Organic Food Chain (OFC) approved logo.
The formula is derived from seaweed, fish, complex sugars, amino acids, humic acid and fulvic acid. It is designed for the vegetative stage, when a nitrogen-focused supplement may be used alongside a complete feeding program. It is not a complete base nutrient and should be measured accurately in water.
Key Features
- OFC-approved organic input
- Vegetative-stage liquid booster
- Typical analysis: 3.9% nitrogen, 0.744% phosphorus and 0.951% potassium
- Contains sulphur, calcium, magnesium, sodium and trace elements listed by the manufacturer
- Derived from seaweed, fish, complex sugars, amino acids, humic acid and fulvic acid
- Manufacturer application rate: 2–4mL per litre of water
Available Sizes and Variants
This TG Hydroponics listing offers 1L, 5L, 10L and 20L variants. Select the required size before adding to cart; live price and availability are shown for each variant.
Specifications
| Brand | Professor's Nutrients |
|---|---|
| Product | Organic Grow Fast |
| Product type | Organic vegetative growth booster |
| Form | Liquid concentrate |
| Approval | OFC-approved organic input |
| Typical nitrogen | 3.9% |
| Typical phosphorus | 0.744% |
| Typical potassium | 0.951% |
| Application rate | 2–4mL/L of water |
| Application window | From vegetative week 2 until the start of flowering |
Package Contents
One sealed container of PROFESSORS ORGANIC GROW FAST in the selected 1L, 5L, 10L or 20L size.
Directions for Use
- Prepare the required volume of water or nutrient solution.
- Measure 2–4mL of Organic Grow Fast for each litre.
- Add the measured amount and mix thoroughly.
- Begin from the second week of vegetative growth and discontinue when flowering starts.
- Check solution pH after mixing; the manufacturer advises using an organic pH adjuster if correction is required.
Care, Maintenance and Safety
- Do not use during the flowering stage.
- Measure accurately and follow the product label and feeding program.
- Keep the container closed when not in use and prevent contamination of the concentrate.
- Keep out of reach of children and pets.
Buyer FAQs
What is PROFESSORS ORGANIC GROW FAST?
It is an OFC-approved organic liquid booster intended for the vegetative stage of plant growth.
What is the application rate?
The manufacturer recommends 2–4mL per litre of water.
When should I start using it?
Start from the second week of the vegetative stage.
When should I stop using it?
Stop at the start of flowering. The manufacturer states not to use it during flowering.
What is its typical analysis?
The typical analysis is 3.9% nitrogen, 0.744% phosphorus and 0.951% potassium.
Is it approved for organic growing?
The manufacturer states that its organic products carry the OFC approved logo.
What ingredients is it derived from?
It is derived from seaweed, fish, complex sugars, amino acids, humic acid and fulvic acid.
Can it be used in hydroponics?
Yes. The manufacturer describes it for organic soil, coco and hydroponic systems. Keep reservoirs and equipment clean when using organic inputs.
Do I need to check pH?
Yes. Check pH after mixing and use an organic pH adjuster if required.
Which size should I choose?
Choose from the live 1L, 5L, 10L or 20L variants according to your water volume and feeding frequency.
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Customer Reviews
This is a game-changer. My setup has never been more efficient. Highly recommend it.
Top-notch stuff. You can feel the quality as soon as you take it out of the box. Works perfectly.
I'm chuffed to bits with this. It's made a huge difference to my garden. The results are amazing.
This is a solid bit of kit. It's clear that it's made to last. Very happy with my purchase.
You little ripper! This is exactly what I was looking for. It's made my life so much easier.
This is the real deal. No mucking around, just a quality product that does what it's supposed to.
I'm so glad I got this. It's made a massive difference to my plants. They're looking healthier than ever.
Top quality gear. It's built like a tank and performs flawlessly. Wouldn't hesitate to recommend it.
This is a fantastic product. It's made my grow so much more efficient. I'll definitely be shopping here again.
I'm blown away by the quality of this. It's a proper piece of equipment. Five stars from me.













