Description
Stimulates the growth of the beneficial micro-organisms in your medium for the benefit of absorbing the nutrients through the roots. Furthermore, these micro-organisms ensure the creation of oxygen and binding the oxygen in the capillary.
This root stimulator also better protects the root environment against all types of soil diseases. BAC Root Stimulator has a cleaning effect on your drippers (no blockage in the capillaries and drippers) and lowers the pH value near the root.
- Dilution / Dose
- 1ml per 10 litres in vegetative week 1, then 2ml per 10 litres for every application after that.
- When To Use
- Vegetative weeks 1–2, then continued into the first 2 weeks of flowering. Stop after flowering week 2 — BAC - Bloom Stim takes over from flowering week 1 onward.
- Substrate Fit
- Soil, coco and hydro.
- Grower Notes
- Overlaps with BAC - Bloom Stim for the first 2 weeks of flowering — both run together during that window, per BAC's official feed charts. Don't run it alongside enzyme products — the two interact and can throw off your pH.
Feed Schedules
If you're looking to use their whole range, check out:
Additives
- Amino Complex
- F1 Extreme Booster
- Calmag 2.0
- Silica Power
- Root Stim
- Bloom Stim
- Final Solution
- Frooting Power
Supplements
Organic Line
How much BAC does your grow actually need?
Tell us your medium, pot size and plant count. The Feed Chart Calculator builds your week‑by‑week chart with target EC, works out every bottle for the whole run, and puts them straight in your basket. You can price BAC against seventeen other brands while you are there.



