General Hydroponics (GHE)

General Hydroponics (GHE) — the original three-part system

GHE's Flora Series is one of the longest-running nutrient systems in hydroponics, built around a three-part FloraGro, FloraBloom and FloraMicro combination that lets you adjust the grow/bloom ratio independently rather than relying on a fixed A+B blend. That flexibility is why it's stuck around in commercial and research settings as well as hobby tents for decades.

Flora Kleen, the product we stock most consistently, is a reservoir and root-zone cleaner used to strip salt build-up before a medium change or at the end of a cycle — it also helps correct pH drift caused by accumulated salts in recirculating systems. If you're running a GHE three-part schedule, Flora Kleen is worth keeping on hand for the flush before harvest rather than reaching for a generic alternative.

The three-part format suits growers who like to fine-tune their own ratios rather than follow a fixed feeding chart — it takes more attention than a straight A+B but rewards it in recirculating and hydro setups specifically, where small ratio adjustments through the cycle can make a bigger difference than in a run-to-waste coco setup.

See deep water culture systems this pairs well with, and enzymes & other for more root-zone cleaners. Free delivery over £50.