Gardener Jenny Currell said a heavy wheelbarrow, tools and other equipment marked with the group’s name recently disappeared from Glen Forrest Community Garden.
Several weeks earlier, two gazebos, a petrol mulcher and a retractable hose were removed from the garden shed.
“We have reported these incidents to the local police and had forensics in attendance last Sunday,” Ms Currell said.
Gardening volunteers have built up the garden steadily since 2008 and run community events with the help of volunteer labour, donations and grants.
Pizza king Theo Kalogeracos last year opened a pizza oven in the garden, complete with a handcrafted mosaic table made by volunteers.
“We’ve had great support and encouragement from locals who admire the work we are doing,” Ms Currell said.
“Unfortunately, someone in the community does not appreciate our endeavours and is making it difficult to proceed.”
The garden has produced an abundance of watermelon, herbs and vegetables including blue popping corn and a variety of purple potatoes.
Last year, the community gardeners contributed fresh produce for the Long Table Lunch held on the winter solstice in June.
Ms Currell said the group shares produce with residents who come to the weekly Sunday morning gardening sessions.
The group hope to fire up the pizza oven again soon when the fire ban ends.
A Festival of Forgotten Skills is in the pipeline for May, with a hands-on day of activities at the community garden.
Anyone with information about the missing equipment, or seeking other information, can visit www.gfcg.org.au.