Taking care of a Gallica rose bush at the Northern Cemetery in Dunedin at a Heritage Roses Otago working bee is Robyne Selbie.
In 2016, about 500 roses showed signs of damage after having been sprayed with herbicide.
Convener Fran Rawling said there was a collection of about 1300 roses which were pruned and shaped earlier this week.
The group held a working bee monthly, along with extra sessions in the winter for planting.

PHOTO: GREGOR RICHARDSON
Ms Rawling said most of the poisoned roses were found and were now "looking pretty good" after a lot of fertiliser and careful pruning.
Many of the roses were very rare, which was why the group kept a mother plant of each type from which to propagate.