- Cobourg Ecology Garden
- Cobourg History
- Cobourg Internet
- Cobourg Town Website
- Cramahe Horticultural Society
- Master Gardeners of Ontario
- Northumberland County
- Ontario Horticultural Association for links to all the district clubs and Ontario gardening information
- Watershed Magazine
- Weather Network gardening conditions for Cobourg

Local Gardens & Suppliers

- Blossom Hill Delphiniums and Peonies – Peterborough
- Brighton Garden Centre
- Burns Water Gardens, Baltimore, ON - Pond Supplies
- Garden Accents
- Garden Girl, Cobourg
- Garden Import
- Gardenhouse Perennials
- Gardens Plus - Hostas and Daylilies in Peterborough
- Griffin's Greenhouses – Peterborough
- Heritage Perennials - Wholesale Grower, Good source of Information
- Home Depot
- Janette Higgins, Landscape Coach
- Lee Valley - A source for garden tools
- Mason Hogue Gardens - Supplier of bulbs, seeds and plants
- Ontario Growers Supply
- Pickering Nurseries
- Plant World
- Richters - Supplier of herbs
- Scott's Barn Lavender Festival and classes
- Veseys Bulbs and Seeds
- Warkworth Farm Supply