What is the growing season in Calgary?

The growing season in Calgary, Alberta is relatively short due to its continental climate. On average, the last spring frost occurs around May 25th and the first fall frost occurs around September 10th, giving Calgary a growing season of approximately 108 days. However, this can vary from year to year depending on weather conditions.

Due to the short growing season, many gardeners in Calgary choose to start their plants indoors in the early spring and transplant them outdoors once the weather is warmer. This allows them to get a head start on the season and produce a more bountiful harvest.