"We're harvesting rhubarb at the moment. Cucumbers, kamo kamo, pumpkin, tomatoes, boysenberries, raspberries.
"I'm having a go at growing goji berries. We've got red and green lettuce and icebergs and a little patch of strawberries."
Ms Stock grows all the plants at home from seeds which are donated by South Pacific Seeds.
"I have to scrounge for funds, we are not Government-funded at all but we have one or two people who help every year."
The volunteers liaise with nearby Arataki Primary School and St Thomas More Catholic School, local kindergartens and garden groups, who visit.
Other local gardeners also contribute their surplus produce for collection by the foodbank.
"There's a guy who comes in who has a lawn mowing franchise who drops off the best grass clippings that we turn into compost along with our own harvest waste."
Ms Stock was a secondary school teacher for 40 years, developing a love of healthy food, and tries to keep the garden as organic as possible.
"I just love to be outside. Being inside all those years there's something therapeutic about being out in the garden."