Mushroom murderer Erin Patterson will appeal her convictions but she has been given an extra 28 days to file the paperwork.

Patterson's appeal period was due to expire at 11.59pm on Monday but her new barrister Richard Edney today applied in the Victorian Supreme Court for an extension.

Justice Christopher Beale granted the application, noting the court's new practice note where appeal extensions are automatically granted if only an additional 28 days are sought.

While the paperwork is yet to be filed, Edney indicated to the court that Patterson would be lodging an appeal against her murder and attempted murder convictions.

The Director of Public Prosecutions is yet to decide whether it will appeal Patterson's sentence, a spokeswoman confirmed.

Patterson was jailed for life in Septemb

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