Acting Detective Senior Sergeant Dave Thompson said the bust was one of the most significant indoor cannabis operations in the past 10 years.
"This operation has been a major and consistent source of cannabis for both the local and Auckland markets for a number of years.
"The discovery further demonstrates the large amounts of illicit money being made in the cannabis trade, and its links to methamphetamine.
"To be able to shut it down is a great result for those communities impacted by organised crime."
A 44-year-old Feilding man and a 46-year-old Feilding woman appeared in Palmerston North District Court on January 3, charged jointly with cultivation of cannabis. Both have name suppression.
They were remanded on bail without plea to reappear in Palmerston North District Court on January 23.