Police discovered more than 100 cannabis plants at a home in Fairfield.
Officers found the drugs farm at a property on Kelso Road after receiving reports of suspicious activity in the area.
The farm had the potential to produce drugs worth around £400,000-a-year.
The illicit operation, which police said posed a fire hazard, was the latest cannabis farm discovery on Merseyside and came after a multi-million pound farm was busted in Bootle.
A 16-year-old boy was arrested after the farm, which had the potential to yield drugs valued at £2.15m per year, was found when officers swooped on a property in Knowsley Road on Tuesday morning.
The drug crop, consisting of 539 plants, was located across four floors in a cellar, former shop unit and upstairs flat, along with growing equipment.
The boy was arrested on suspicion of production of cannabis, and taken to a police station to be interviewed.
Speaking after that raid Sergeant Gary Sorrell, of the force’s Cannabis Dismantling Team, said: “Cannabis cultivation by criminal gangs causes serious harm in our communities, and every cannabis farm we find and dismantle represents a big dent in their profits and activity.
“These criminal groups are usually involved in other serious organised crime and they often use residential properties such as this, as well as business premises.
“Our communities can help us stop these groups, whose sole interest is to make money, from turning houses like this one into potential death traps for themselves and neighbouring properties.”
*Anyone with information about cannabis farms is asked to contact Merseyside Police via Twitter (@MerPolCC), calling 101 or contacting Crimestoppers, anonymously, on 0800 555 111.
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