What plant hardiness zone is Sultan

Sultan is located at Sudbury District, Ontario (ON), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Sultan is 3a by the PHZ Canadian scale.

Plants of 3a PHZ hardiness zone suitable for outdoor gardening and growing in this winter frost zone 3a PHZ.

Also perennial plants from the equivalent USDA zone 2a with coldest winter temperature −45.6 … −42.8 °C and lower can be grown here, see list of plants for 2a USDA winter zone.

Sultan, Ontario @ wikipedia.