Waara pleaded guilty to a charge of cultivating cannabis and was sentenced on Tuesday.
Judge Walsh said Waara's offending was category one drug offending.
"I have to say Mr Waara that you have to be careful," the Judge said.
"You could have been up to the next category where the court is directed to impose terms of imprisonment."
Lawyer Stephanie Burlace said her client Waara wanted help with his addiction.
Judge Walsh gave Waara that opportunity, sentencing him to nine months' supervision and 50 hours' community work.
"I don't want you to think that supervision's a soft option here. If you don't comply with that sentence, you can be breached and brought back to court," he said.
"The whole purpose of that sentence is to get you the help you need."
The Judge ordered destruction of the equipment used in the growing operation.