Imagine a garden in every school

About Us

Our vision is of healthy communities with
learning gardens everywhere!

Who We Are


We are a for-impact food and nature literacy program in three adjoining dense urban neighbourhoods in downtown east Toronto.We partner with schools, City and community agencies to help foster urban agriculture, greenspace enjoyment, physical and mental health benefits. We promote environmental education by doing.

Land Acknowledgement

This land is traditionally a shared territory between the Haudenosaunee and Anishnaabe through the Dish With One Spoon Treaty. They agreed to care for the land together in peace. It has been territory utilized by the Wendat, the Petuns, and the Seneca. Now, it is stewarded by the Mississaugas of the Credit and it’s home to indigenous people from across Turtle Island. May our actions here on this land make us worthy. And during the ongoing crisis of colonialism, may we learn new ways of survival and sharing from First Nations Peoples. At Green Thumbs, we support the Call to Action #62(i) from the TRC, that calls on "our government and educators to make age-appropriate curriculum on residential schools, Treaties, and Aboriginal peoples’ historical and contemporary contributions to Canada a mandatory education requirement for K-12 students."

Meet Our Team!

The Green Thumbs staff and board are proud supporters of the Cabbagetown, Regent Park and St. Jamestown communities.

What We Do


We run school garden programs that provide all ages and all backgrounds with a variety of settings such as native/naturalized plantings, meadow ecosystems, native tree species in their own mini-nurseries, and small-scale agriculture including production of kid-friendly small fruits and vegetables, aerobic/thermal and worm composting. When the weather gets cold, we bring the garden inside through classroom workshops on topics related to food and the environment. In early spring our programs move to a City of Toronto greenhouse, where children and youth start the seeds for their gardens. We have a Partnership Agreement with the Toronto District School Board, and serve a cluster of schools.

1999
Riverdale Farm AFTER-SCHOOL
Green Thumbs was started by Sunday Harrison as an after- school gardening and nature program for 6-12 year olds at Riverdale Farm. next to the Don River. Children were picked up at the three schools below, leading to the school gardens.
2001
WInchester  P.S. community Garden
Winchester Public School (400 students, K-8) has a large (11,000 sq. ft.) garden hosting workshops, presentations, food production and composting. The instructional program operates during the school day and uses gardening and food activities to support learning objectives.
2005
ROSE AVE P.S. garden
Rose Avenue Public School (700 students) in St. James Town (a dense high-rise neighbourhood) has a small but productive garden and tree nursery. More than 85% of the students have English as their second language, representing about 50 language groups.
2006
ALLAN GARDENS-CHILDREN’S GREENHOUSE
Green Thumbs Growing Kids starts running a school-day field trip program at Allan Gardens Children’s Conservatory, a City of Toronto Parks, Forestry and Recreation site, in early Spring
2009
SPRUCECOURT P.S. PEACE GARDEN
Sprucecourt Public School (300+ K-8 students) The Peace Garden was an initiative begun in 2008 by Lead2Peace, a youth organization in Regent Park. In 2009, Green Thumbs got involved to help build up the food gardening part of their curriculum, and we worked in partnership with students, teachers, lunchroom staff and Lead2Peace. Then carried on ever since.
2017
Trees from Seed program
We've been growing trees from seed with children and youth. The goal of the project is to increase GTA tree canopy from 27% to 40%. Growing seeds increases biodiversity.
2020
Green Thumbs Urban Produce (UP)
Green Roof garden at Daniels Spectrum is a robust market garden, in 5 inches of soil. Organic methods and sustainable practices ensure produce is healthy, nutritious, and that our pollinator friends get the support they need. Rooftop is a total of 10,000 sq. ft. producing 160+ lbs. of nutrient-dense food
2023
Urban roots youth Program
Urban Roots Youth includes the Kahik Growers program which incorporates Indigenous plant knowledge and climate solutions, empowering Indigenous and non-Indigenous youth.
2025
EASTDALE COLLEGIATE INSTITUTE
Previously partnered with Foodshare, Eastdale’s rooftop garden is 16,000 sq. ft. with 15-inch deep garden beds. Eastdale’s garden program is a valuable tool for life lessons. Most students have special needs or learning exceptions, and have small classes.