Ontario Planting Zone Map – For flowers you can start them anytime after mid february, just keep in mind the earlier you start them the sooner they fade. The united states department of agriculture (usda) also has a hardiness zone map that is used to guide planting. 10 to 15° (f) rainfall: Plant ranges show where a plant grows naturally and where it has been introduced.
Ontario Planting Zone Map
Ontario Interactive Plant Hardiness Zone Map from www.plantmaps.com
Image from natural resources canada characteristics of ontario planting region the ontario climate is classified as humid continental; 15°f to 20°f zone 8a.
Ontario Planting Zone Map Landscape Trades
Natural resources canada has produced plant hardiness zone maps since the 1960s.
Zone 9b 25°f to 20°f:
Zone 10a 30°f to 25°f:
Climate maps and hardiness indices.
Keep in mind that some times in the right area plant that are designated for zone 6 (jap.
