Mushroom killer Erin Patterson will appeal a jury verdict that found her guilty of three murders and an attempted murder.

Patterson's barrister made the announcement during an administrative hearing in Victoria's Supreme Court on Thursday morning.

The grounds for the appeal were not outlined, and documents have not been formally lodged.

The 51-year-old was sentenced to life in prison with a 33-year non-parole period over the murders of relatives Don and Gail Patterson and Heather Wilkinson, who she poisoned with toxic mushrooms in a beef Wellington meal at her home in regional Victoria in 2023.

She was also found guilty of attempting to murder Ms Wilkinson's husband Ian, who also ate the poisonous meal but survived after a stint in hospital. Loading

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