Simon James Murfett, 29, pleaded guilty in the Launceston Magistrates Court yesterday to having supplied, cultivated, used, possessed and sold cannabis.

Magistrate Simon Brown said Murfett's offending was not at the lowest end of the scale.

He convicted Murfett and fined him $1250.

Police prosecutor Brett Steele told the court that police searched Murfett's Bangor Road house on January 13 this year.

Officers seized about 1 kilogram of cannabis, 685.6 grams of cannabis leaf and eight cannabis plants.

Mr Steele said Murfett told police he used the cannabis for his back problems, and bartered it in return for manual jobs at his property.

On February 20, officers found 34 cannabis plants in a fenced growing compound hidden in bushes, a short distance from Murfett's residence.

Mr Steele said Murfett told police he had planted more than 35 plants on his brother's property, without his brother's knowledge, and he planned to sell the cannabis he did not use.

Defence solicitor Evan Hughes said his client had injured his back in a workplace accident and grew his own cannabis because he did not want to associate with cannabis sellers.

He said most of the cannabis seized from Murfett's property was in fact leaf.