Police seized a machete, two axes and a hammer when they raided a cannabis farm in Halewood.
The weapons were recovered when a warrant was executed at a house in Chudleigh Close yesterday.
Officers also recovered 89 cannabis plants, and found that that the electricity supply had been tampered with.
Police posted photographs of the weapons on social media yesterday.
They said: "Officers attended an address yesterday on Chudleigh Close during which they located a cannabis farm. In total, officers found 89 cannabis plants along with a quantity of cannabis inside the address.
"The electricity supply had also been tampered with which was required to be made safe by Scottish Power. The investigation is still ongoing at this time.
"If you have any information about suspected drug production in your area, please contact us on our non-emergency number 101, or online via our website. Alternatively, call Crimestoppers anonymously on 0800 555 111."