Tell us whether lilacs bloom in spring or summer.

1. Lilacs usually bloom in spring. People refer to lilacs, which bloom in May and June.

2. There are other varieties of lilacs, so the specific time is different. White lilacs and blue lilacs will bloom in April and May.

3. Syringa microphylla will bloom in April and May in spring, July and August in autumn, and Syringa microphylla will generally bloom in June.