True biennials flower only once, while many perennials will flower every year once mature.

Do biennials come back every year?

While annuals last for one season and perennials give years of pleasure, the biennial, as its name suggests, has a two-year cycle. The first year it produces a leafy base or rosette, which winters over; the second year it forms a flower, which, later in the season, develops visible seed pods.

Do biennials bloom every other year?

Biennials live for just two years, and flower only in their second year. During their first season, they focus on growing lush foliage and strong roots.