FloraFlex Feed Chart
FloraFlex is a dry powder program — V1 and V2 through veg, B1 and B2 through flower, with Bulky B and Full Tilt. The chart below is FloraFlex’s own schedule, with the target EC on every week. Underneath it, our free calculator fits it to your pot size, plant count and cycle length, and works out exactly how much you need to buy.
The FloraFlex — weighed dry feed chart
Per litre of water — millilitres for the liquids, grams for the powders. Veg here is four weeks and flower nine, which is the commonest UK cycle. If yours is longer or shorter, the calculator fits the same schedule to it rather than simply running out.
Swipe the chart sideways to see every week.
| Week | V1 + V2 | Root Drip | B1 + B2 | Bulky B | Full Tilt | Target EC |
|---|---|---|---|---|---|---|
| Veg week 1 | 1.32 | 0.26 | – | – | – | 3.0 |
| Veg week 2 | 1.32 | 0.26 | – | – | – | 3.0 |
| Veg week 3 | 1.32 | 0.26 | – | – | – | 3.0 |
| Veg week 4 | 1.32 | 0.26 | – | – | – | 3.0 |
| Flower week 1 | – | 0.26 | 1.06 | 0.53 | – | 3.0 |
| Flower week 2 | – | 0.26 | 1.06 | 0.53 | – | 3.0 |
| Flower week 3 | – | 0.26 | 1.06 | 0.53 | – | 3.0 |
| Flower week 4 | – | 0.26 | 1.06 | 0.53 | – | 3.0 |
| Flower week 5 | – | 0.26 | 1.06 | 0.53 | – | 3.0 |
| Flower week 6 | – | 0.26 | 0.53 | – | 1.06 | 2.0 |
| Flower week 7 | – | 0.26 | 0.53 | – | 1.06 | 2.0 |
| Flower week 8 | – | 0.26 | – | – | 1.06 | 0.8 |
| Flower week 9 (flush) | – | 1.32 | – | – | – | – |
Target pH 5.8 to 6.2. V1 and V2 are sold as one bundle and so are B1 and B2, so a “1 lb” is a pound of both parts.
Two ways to run the same powder
FloraFlex’s own documents quote the schedule as millilitres of a stock solution: you make each powder up at 1 lb per US gallon, which is 119.8 g per litre, then dose the stock. The chart above instead gives grams of dry powder weighed straight into the tank.
Same products, same total, same result. The stock tank suits anyone mixing large volumes regularly; weighing dry suits anyone mixing one tank at a time and not wanting a second set of containers. Both are in the calculator as separate lines so you can pick the one that matches how you actually work.
Mix to the EC, not to the millilitres
The doses above assume your water starts at zero. UK tap water usually sits between 0.3 and 0.5 EC before you add anything, and that counts towards the targets in the last column.
So on tap water you will reach the chart’s own EC with slightly less nutrient than it prints. Use the doses to get close and the meter to know. On RO, the printed figures are the ones to run.
What a full FloraFlex run costs
For a common UK setup, nine plants in 3 gallon Quick Fill coco bags, four weeks of veg and nine of flower, the whole cycle comes to about £118 across 7 products, mixing roughly 1,500 litres of feed.
The single biggest line on that bill is FloraFlex B1 + B2 at around £38. That is worth knowing before you order, because it is usually the additives rather than the base that decide what a run costs.
The calculator prices your actual grow rather than this example, and prices the other fifteen brands alongside it, so you can see what you are paying for.
Which FloraFlex line should I be on?
The two lines are the same program quoted two ways: as a stock tank in millilitres, or weighed dry in grams.
- FloraFlex — stock tank — Mix each powder at 1 lb per US gallon, then dose millilitres of that stock. The chart is in ml.
The calculator only ever lists the lines that suit the medium you pick, so you cannot accidentally run a soil chart in coco.
What you need for a FloraFlex run
- FloraFlex V1 + V2
- FloraFlex Root Drip (optional)
- FloraFlex B1 + B2
- FloraFlex Bulky B (optional)
- FloraFlex Full Tilt (optional)
- FloraFlex Veg Foliar (optional)
- FloraFlex Bloom Foliar (optional)
Or let the calculator work out the sizes and quantities for your own grow and put the lot in your basket in one click.
Open the FloraFlex calculator →
The Hydro Bros is not affiliated with, endorsed by or approved by FloraFlex. The figures above are transcribed from FloraFlex’s own published feed chart. They are a starting point rather than a prescription: read your own runoff and your own meter, and adjust to your room.
