Jodie Seadon says she was quite distressed earlier this week when she spotted signs at Carr Villa Memorial Park near her mother's burial site.
The signs state only a plastic vase is permitted at each plot site in Claygrove, Kooyong and the Rose Gardens area due to safety reasons for staff and visitors.
The City of Launceston council, who manage the cemetery, said the policy was not new and it was not the first time a reminder had been given.
Ms Seadon's mother's ashes have been buried in the park's rose garden for more than two years. With a plastic vase, two small cat figurines and an ornamental butterfly cable-tied to the rose bush to add a personal touch.
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She said her visit on Monday was quite distressing as it was the first time she had seen a sign like it or heard about it.
She was also upset the crematorium area was being singled out.
"[The sign] doesn't even have a date on the thing to have your stuff removed by," Ms Seadon said.
"We're hoping that they're gonna be able to let us leave it there. Because otherwise you have to take everything away and at the end of the day we paid for the area."
The council said on Wednesday it routinely works through these issues with families in good faith, including issuing the reminders at different times throughout the year.
It also said the items could pose a hazard to staff and visitors, or create a nuisance for other bereaved families.
The signs state only a single plastic vase is permitted at each plot in those areas, and all other vases, jars, bottles, statues and ornaments needed to be removed.
The council has not said when the unpermitted items will need to be removed by and what would happen if the items were not removed.
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