Police have been clearing a cannabis farm on King street over the weekend.
The plants which filled four room of the property are believed to have a return of £3.5M per year.
Merseyside Police also recovered growing equipment and bags of dried cannabis from the scene.
Sergeant Chris Bland said: “This cannabis farm was on a busy street of shops and flats and the growing of cannabis threatens the safety of neighbouring properties because cannabis farms are a serious fire risk.
“Electricity and water are never a good combination and fires have been caused by the crude systems put in place by the people who set up these farms.”
Officers found the electricity at the house was illegally tampered with.
The scene was secured to enable officers to recover the cannabis and forensically examine the scene and the seizure was made with a warrant today.
Sergeant Bland added: “Every single cannabis farm seized, especially a large farm such as this, marks a significant step in our efforts to disrupt the activities of criminals growing cannabis in Merseyside.
“Cannabis cultivation by criminal gangs brings misery to our communities as we know criminal groups involved in the cultivation of cannabis are usually involved in other serious and often violent organised crime.
“Our communities can help us stop these groups, who are only interested in making money, from turning houses and flats into potential death traps.
“Nobody wants to live next door to these houses and we would ask that if you believe someone is using a property for this purpose, please tell us so we can take positive action and find those responsible for setting them up.”
Anyone with any information about suspected cannabis farms or drug operations can call police on 101, or Crimestoppers, anonymously, on 0800 555 111.