| Zone 5a -20°F to -15°F | Zone 5b -15°F to -10°F | Zone 6a -10°F to -5°F | Zone 6b -5°F to 0°F |
Based on the USDA Hardiness Zone Map Designations, this interactive version covers the Province of Nova Scotia which ranges from USDA Zone 5a to USDA Zone 7a. What are Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones? Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones refer to defined geographic regions that can support specific plants, flowers and trees. T he zones define a minimum range of temperatures that a plant or tree can survive safely in that zone.