Gillgren had already pleaded guilty to one charge of cultivating cannabis and another of selling cannabis before the start of their trial.
In court this week, her lawyer Arthur Fairley asked for another adjournment because the Probation Service had had difficulty contacting Gillgren's parents who were overseas to check the suitability of a home detention address.
Mr Fairley said the pre-sentence report mentioned another address could be available.
Judge Duncan Harvey said he would put off the sentencing for the last time and if Gillgren did not come up with another address, she would likely go to jail.
The next sentencing date is December 20.
Borland was found guilty of cultivating cannabis, selling cannabis oil and another of permitting premises to be used for growing cannabis.