If you’re just getting started growing cannabis, the General hydroponics flora series is a great place to start.
It’s easy to use with solid results every time.
The best part is that it’sinexpensive to purchase compared to the newer line of nutrients on the market.
The gh flora trio nutrient line has been around forever.
I do know of some growers who have been growing with general hydroponics flora trio for over 30 years.
They have been using this stuff since they started.
The growers use it and trust it and grow some really killer herb, and their herb smokes nice.
I asked what their trick was for using Flora?
Each one had a secret recipe somewhat similar which I will share with you later.
Most importantly is they all said the same thing to flush your plants properly.
Even NASA used this stuff to grow vegetables and in their experiments.
Around 2014 Scotts Miracle-Gro buys General Hydroponics, which means GH brand products will be available everywhere soon enough. Sourced from Forbes.
In this how to, we will look at the general hydroponics 3 in 1 nutrient line to check out the benefits and the best way to use the flora series when growing cannabis.
Compare it with how the general hydroponics recommends using their product for general indoor garden use.
Best practices for flushing when using this nutrient line.
What’s in the General hydroponics flora series?
Here are the three different type of nutrients in the line.
Each one is for the various stages of growth they all play a part in the complete package of the GH flora series.
This nutrient line is made up of synthetic nutrients which include:
Flora Micro

FloraMicro is the foundation to the whole flora series.
It’s the one that provides the essential micronutrients required for your cannabis plants.
These are the building block on which the plant will grow.
Flora micro delivers nitrogen and calcium with potassium to your plants along with trace minerals such as zinc, iron, manganese, boron.
With being ph balanced this is a breeze when combined with water.
The N-P-K value is 5-0-1
Flora Gro

The FloraGro is the one that starts to have all the N-P-K values incorporated into the nutrient.
Gro helps to promote the vegetative phase and the development of the structure of the plant.
Floragro has the perfect combination to provide to your plants when having rapid growth in the veg stage of growth.
The N-P-K value is 2-1-6
Flora Bloom

The FloraBloom will be the one to stimulate the flowers or buds on your cannabis plants.
It provides potassium, phosphorus, and magnesium along with sulfur to your growing plants.
FloraBloom will also enhance flavor and terpene development during the flowering stage.
The N-P-K value is 0-5-4
Benefits of using the GH 3 in 1:
There are many benefits to using the general hydroponics flora they are:
Complete package, it’s all there no messing with a million containers this can be used the whole way through the grow.
Perfect for beginner simple and easy to use.
Instead of investing in hundreds of dollars in nutrient, hey can pay a low price for this line of nutrients.
Availability, One bonus to GH trio that it’s available almost anywhere from Home Depot to the grow store, and even on Amazon, it is readily available.
Plus,they are less expensive than your average nutrient on the market for synthetic nutrients.
How to use the GH flora series
Here is the general hydroponics flora series feeding schedule for growing cannabis:
Recirculating Program
Great for flood tables and DWC.
Clones and seedlings:- 2.5ml/gal of all three parts of the Flora Series
Veg stage – 5ml/gal FloraMicro, 10 ml/gal FloraGro and 5ml/gal FloraBloom
Early Flowering – 7.5ml/gal FloraMicro, 7.5ml/gal FloraGro and 10-12.5ml/gal FloraBloom
Peak flowering – 10ml/gal FloraMicro, 5ml/gal FloraGro and 15ml/gal FloraBloom.
Flush – 2.5ml/gal of each part for three days, then FloraKleen if growing in coco coir or soil perlite mix.Follow up by plain RO water or de-chlorinated water w/ one tsp/gal (2.5ml) of molasses if you so desire
Drain to waste program
Great for Coco coir or soil with perlite.
This one involves either coco coir or soil with preferably a perlite mixture, and there is also soil with coco coir as well now.
Clones and seedlings:- 2 ml/gal of FloraMicro, 1 ml/gal FloraGro, 1 ml/gal FloraBloom
Veg stage – 4ml/gal Flora Micro, 5 ml/gal Floragro, and 1ml/gal FloraBloom
Early Flowering – 4ml/gal FloraMicro, 3ml/gal FloraGro and 5ml/gal FloraBloom
Peak flowering – 3ml/gal FloraMicro, 1 ml/gal FloraGro and 8ml/gal FloraBloom
Flush – 2.5ml/gal of each part for three days, then FloraKleen if growing in coco coir or soil perlite mix.Follow up by plain RO water or de-chlorinated water w/ one tsp/gal (2.5ml) of molasses if you so desire
How to use General Hydroponics flora seriesfor vegetables and fruit:
General Hydroponics recommends utilizing the flora series for growing vegetables and fruit.
You will notice a slight difference is what they would like and to the Cannabis Program above.
GH Recirculating Program
Great for flood tables and DWC.
- Clones and seedlings – 2.5ml/gal of all three parts
- Veg state – 10ml/gal FloraMicro, 10 ml/gal FloraGro and 5ml/gal FloraBloom
- Early Flowering – 7.5ml/gal FloraMicro, 2.5ml/gal FloraGro and 10-12.5ml/gal FloraBloom
- Peak flowering – 7.5ml/gal FloraMicro, and 15ml/gal FloraBloom.

GH Drain to waste program
This one involves either coco coir or soil with preferably a perlite mixture; there is also soil with coco coir as well now.
- Clones and seedlings – 2 ml/gal of FloraMicro, 1 ml/gal FloraGro, 1 ml/gal FloraBloom
- Veg state – 5ml/gal Flora Micro, 5 ml/gal Floragro, and 2.5ml/gal FloraBloom
- Early Flowering – 4ml/gal FloraMicro, 1ml/gal FloraGro and 5ml/gal FloraBloom.
- Peak flowering – 4ml/gal FloraMicro, and 8ml/gal FloraBloom.

For more detailed information, please check out the general hydroponics site for feeding charts.
Tips on use and storage:
1
Shake well.
2
Store In cool dark place
3
Add one nutrient at a time when filling reservoir, start with Micro → Grow → Bloom.
4
Rinse measuring cup after each addition of nutrient.
Flushing:
Flushing is one of the most critical steps in growing good cannabis.
Do you want to consume fertilizers in your marijuana?
I didn’t think so.
It also affects the burn and taste of your herb.
General Hydroponics has a product called FloraKleen.
This product is good at getting rid of salt buildup and removing nutrient build up or residue in your medium or table.
A little goes a long way.
One tsp per gallon.

Benefits :
- Reduce salt build up
- Flush solution
- Safe for all mediums
- Remove impurities
- Lasts forever
For Hydroponics such as coco coir medium, it is suggested to use within the last two weeks of growing.
Then to use just RO water for the reminder feedings.
When using Hydroponic DWC or flood and drain or recirculation, you can go a week before with the Flora Kleen.
Try and achieve a 0 PPm at the final flush. By having close to 0 PPM, it will ensure a high-quality cannabis in the end.
It’s hard to do but get as close as you can.
For soil mediums suggest use is:
Start Last 2-3 weeks of flower depending on grow medium. For coco at least 2 weeks out and for soil 3 weeks out is recommended.
Use FloraKleen on week one as recommended on the bottle with R/O water (reverse osmosis) preferably 0 PPM, and flush heavy.
Then use water on next feeding only
After that use FloraKleen two more times a week apart flush heavy and water in between.
Try a strive for a 0 PPm at the final flush. By having close to 0 PPM, it will ensure a high-quality cannabis in the end.
It’s hard to do but get as close as you can.
Final thoughts
Growing good cannabis with general hydroponics flora series can be achieved.
Flora is incredible if you’re just starting out or looking to save some money when growing.
Although this nutrient is synthetic, if you do flush correctly there should be nothing to worry about if you’re concerned with non-organic ingredients.
How do you use the gh flora series and your experience?
Did you have good result?
Let me know in the comments.
Grow in my friend