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Commercial cannabis viability in the Free State
This is the regional version of the processing pipeline series. The short version: grade the harvest into four classes at trim time, A for flower, B for hydrocarbon carts, C for bubble hash, D for static-sifted kief plus an ethanol wash on the leftovers. The full model and the economics are here: https://420forums.co.za/processing-pipeline-farmer-economics/
Frost sets the Free State season. The crop window runs from the last frost in spring to the first frost in autumn, which is short for a late September planting. A frost event in March can end a flowering crop overnight.
Summer rainfall and clay-heavy soils mean drainage is the first question, not fertility. Row crop farmers here already have the machinery and the land, but cannabis is not a row crop once it hits the drying room.
Irrigation is the second question. Water rights and allocations decide the scale more than hectares do.
The advantages are land cost and existing agricultural skill. The disadvantages are the season length and the distance to the main consumer markets.
Run the numbers locally. The model from the series puts a 1 kg dry plant at roughly 270 g A, 255 g B, 150 g C and 215 g D class. Apply Free State prices to that split, then subtract the costs that are specific here: irrigation allocation fees, diesel or electricity for pumping, frost cloth or a greenhouse if you want to stretch the season, and transport to the Gauteng market. Land is cheaper here than in the Western Cape, but season length and water are the real price.
If you already grow in the Free State, post what your water allocation costs per hectare. That figure decides the viability math more than any yield estimate.
Soil notes are on the SA soil map: https://420forums.co.za/ultimate-soil-map-of-south-africa-for-farming-cannabis/