Bath Gardening Club and Horticultural Society - Growing Zones

Growing Zones   


The growing zones in Canada refer to "Plant Hardiness" - areas where various trees, shrubs or flowers will probably survive. These zones are based on average climatic conditions.  Gardeners rely on this information when making plant choices. It is wise to choose plants that have the best chance of doing well in your local area.

Growing Zones for our membership

  • Bath and regions near Lake Ontario: 5b (-15°F to -10°F)
  • North of Bath: 5a (-20°F to -15°F)
  • North of the 401 Highway: 4b (-20°F to -25°F)

Note: These are generalizations and you could be in a zone warmer or colder due to your environment (hilltop or valley, large or small waterways, shelter)


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