Diamond Harbour School took second in the national Garden to Table school of the year awards.
It was the first year the awards have taken place and they attracted 70 entries nationwide from children and schools.
Judges included gardening journalist Lynda Hallinan and chef and restauranteur Al Brown.
Garden to Table executive officer Linda Taylor said the judges were “blown away” by the standard of applications received.
“It’s fantastic to see such enthusiasm for getting outside, being active and learning key skills that will see them through life. All the judges were incredibly impressed by the drive children showed for gardening,” she said.
Diamond Harbour School programme co-ordinator Lisa Hurry said the garden provided jobs for everyone from muscle work like moving compost and cleaning out the chicken coop to garden art, seed-sowing and watering.
“This diversity allows everyone to participate, creating a sense of community within the garden,” she said.