Jade Brendon Martin was sentenced in the Dunedin District Court for importing and selling methamphetamine, and cultivating cannabis.

A methamphetamine importer who played "fast and loose" with the drug has been sent to prison.

Jade Brendon Martin, 22, was sentenced for importing and selling methamphetamine and cultivating cannabis when he appeared before Judge Michael Crosbie in the Dunedin District Court on Tuesday morning.

Methamphetamine was a "scourge which destroyed communities" and Martin was part of that, "make no mistake", the judge said.

When police raided Martin's Clyde home on October 11, 2016, they found a purpose-built grow room for cannabis and a large amount of methamphetamine paraphernalia.

The room contained five mature cannabis plants in the final stages of budding, 33 seedlings, and a large number of plastic point bags.

The court heard three packages containing a total of 7.5 grams of methamphetamine were intercepted by Customs in late 2015.

The drugs were ordered over the internet from Canada and Mexico, paid for by BitCoin, and sent to Martin's own address but under a pseudonym.

Martin admitted the drugs were his, saying they were for his own use.

His lawyer, Sarah Saunderson-Warner, said he was not motivated by commercial gain, but used the drugs for himself or to "shout mates".

Judge Crosbie said Martin was "playing fast and loose with this drug".

The court heard Martin started smoking cannabis in high school, and later tried methamphetamine, which he preferred.

The judge said he was surprised Martin could work as a roofer given his drug use.

Martin was sentenced to three years and eight months in prison.