Mark John Morsillo, 55, pleaded guilty in the Supreme Court in Burnie to a count of trafficking in a controlled substance.

Crown prosecutor Claire Flockhart told the court the charge related to the period between February 2020 and July 2021, during which two separate police warrants were executed at Morsillo's property.

Across the two searches, a large quantity of cannabis and associated smoking and growing devices were found throughout Morsillo's property.

Ms Flockhart said Morsillo admitted selling cannabis to about 10 people, and that he sold cannabis by the ounce for about $300.

She said that based on his admissions, the plants and cannabis found on his property had a potential value of nearly $200,000.

However, defence lawyer Julie Ker told the court that amount had never actually been realised.

"There is no suggestion he was living any kind of indulgent or extravagant lifestyle," Ms Ker said.

"His financial circumstances are modest at best."

Tasmania Police first arrested and charged Morsillo following a search of his home in February 2021.

Ms Flockhart said that in an interview with police after the second search of his home in July that year, Morsillo made a number of admissions including that he had resumed his operation a month after the first arrest.

She said he told police he knew how to make up to 40 different illicit drugs, and that he had smoked cannabis since he was a child.

"He said he thinks his cannabis is the best in Tasmania," Ms Flockhart said.

She said it was aggravating that Morsillo had resumed his operation shortly after the first arrest, but Ms Ker stressed that her client only ever sold to a small group of people.

She said her client had been a drug user for most of his life, and as well as cannabis had used heroin and amphetamines intravenously.

Justice Tamara Jago adjourned sentencing on the matter to July 20.

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