Lilac Festival 2025 Calgary Canada Dates. This is an old street. Calgary which is located in alberta region, in south west canada holds once a year, on the last sunday of may, the lilac festival.

Preparations are underway for calgary’s 2025 4th street lilac festival. This free one day event is the start up to calgary's vibrant festival season, and encourages citizens to shake off their winter blues and reintroduce. Calgary which is located in alberta region, in south west canada holds once a year, on the last sunday of may, the lilac festival.