We do not know the value of the cannabis market in Australia. ‘Per plant’ estimation of the street value of cannabis is a helpful measure – if we can derive an estimate of the value for one cannabis plant, then we can measure the value of a seizure of many plants; and estimate the overall value of the Australian market based on cannabis crops. The purpose of this bulletin is to provide estimates of the ‘street value’ of an individual indoor, hydroponic cannabis plant, taking street price and yield into consideration.