Shannon Myree Arnold, 32, was sentenced to 12 months' jail wholly-suspended for the drug offence at the Supreme Court in Hobart.

Because she committed the trafficking offence under conditions of a wholly-suspended sentence given for a previous offence, Chief Justice Alan Blow activated the three-month jail term given to Arnold by the Magistrates Court in 2013.

Chief Justice Blow said, given Arnold's attempts of rehabilitation, including entering in her first relationship with a non-violent partner and seeing a psychologist, it was not just to impose further jail time.

The court heard Arnold was a sub-dealer in a drug network run by two men.

Arnold and other traffickers would leave drugs and cash in forests and bushland areas for collection. One location included two PVC pipes used to store the drugs and money.

Between January and March 2015, Tasmania Police observed 143 grams of methamphetamine and $44,000 pass through the pipes.

Arnold also had her own drop point at Rosny Hill she would use for smaller quantities of drugs.

After she was arrested and bailed in May 2015, Arnold continued to traffic methamphetamine from her home and the hairdressing salon where she worked.

The court heard Arnold's partner at this time was a large-scale dealer and she continued trafficking because she was under pressure make payments on a debt owed by her partner.