A biennial plant is a flowering plant that takes two years, generally in a temperate climate, to complete its biological life cycle. In the first year, the plant undergoes primary growth, in which its leaves, stems, and roots develop.

What is biennial in years?

1 : occurring every two years a biennial celebration. 2 : continuing or lasting for two years specifically, of a plant : growing vegetatively during the first year and fruiting and dying during the second Biennial herbs flower in their second year.

Will biennial come back?

Biennial plants grow leaves, stems and roots the first year, then go dormant for the winter. In the second year the plant will flower and produce seeds before dying. ... They may perform like perennials in the garden because new plants that emerge from seed constantly replace plants that have died after their second year.