What month does lilac bloom?

Although many lilac varieties bloom in midspring, commonly around May, the "Excel" cultivar blooms as early as February or March. Combine this early-blooming lilac with other, later-blooming varieties to extend the flowering period from late winter through late spring, or two near-continuous flushes of blossoms.

Do lilacs bloom all summer?

Young lilacs need ample time to establish their roots. ... Most lilacs will only bloom for a short time period in the spring. Common lilac has one of the longest and hardiest blooms. Long-lasting varieties of lilacs are called reblooming lilacs and can bloom for around six weeks through spring and summer.