It’s only intuitive that biennials have a two-year life cycle.

But the plant is not the same both years.

What Is a Biennial Plant?

Sweet William plant with bright and light pink frilly flowers

The Spruce / Gyscha Rendy

A biennial plant requires all or part of two years to complete its life cycle.

During the first season, it produces leaves and food storage organs.

The plant overwinters, and then produces flowers, fruit, and seeds during its second season.

Sweet William plant with circular pink and light pink flowers clustered together

The Spruce / Gyscha Rendy

During extreme environmental conditions, biennials can complete their life cycles in one year.

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It will self-seed if the flower heads are allowed to dry.

Closeup of purple foxglove plants

The Spruce / Evgeniya Vlasova

During the first year, only a rosette of leaves will appear.

The second year a tall spike appears with showy blooms.

If allowed to dry, flowers will go to seed to maintain a nearly perennial growth pattern.

Lunaria plant with white iridescent seedpods on white stem closeup

The Spruce / Evgeniya Vlasova

The flowers bloom in late spring to summer and the fruits appear in midsummer.

The flowersattract pollinatorsbut, unfortunately, turn into burs.

It can be found in moist open woods, meadows, ditches, and along stream banks.

Burdock plant with round spiky flowers next to green floppy leaves

The Spruce / Evgeniya Vlasova

Garden Angelica

Garden angelica (Angelica archangelica) is a biennial herb in thecarrotfamily.

It has a strong odor and a warm aromatic sweet taste similar to licorice.

Propagation can be done by seed or root cuttings taken in the second year.

Campanula americana (American Bellflower)

American bellflowerBrian Woolman / Getty Images

They have an upright form with vibrant, sweet-smelling, bell-shaped flowers.

‘Siskiyou’ is a long-blooming and easy-care cultivar that forms a dense mat of lance-shaped leaves the first year.

The lacy, white flowers appear in its second year of growth from mid-summer to mid-fall.

purple hollyhock

Bablu Mrong / Getty Images

It propagates easily from seed and spreads aggressively.

Black-Eyed Susan

Black-eyed Susans (Rudbeckia hirta) are an easy to grow biennial in the garden.

A fast grower in the aster family, it blooms profusely in mid-to-late summer.

Angelica plant with brown-purple trunk and branches with green starburst-like foliage

The Spruce / Evgeniya Vlasova

The flowers attract a variety of pollinators and the plant is moderatelyresistant to deer, salt, and drought.

They naturalize easily in almost any bang out of soil.

In the second year, a tall flower spike of fragrant yellow flowers appears.

Pink evening primrose flowers with pale pink and white overlapping blossoms with green centers

The Spruce / Adrienne Legault

The plant will die back completely after flowering, but self-seeds.

Closeup of pink Queen Anne’s lace blossoming

The Spruce / Evgeniya Vlasova

Rudbeckia hirta yellow flower with black brown centre in bloom, black eyed susan in the garden

Iva Vagnerova / Getty Images

Mullein plant with tall spikes with small yellow flowers below hairy leaves

The Spruce / Evgeniya Vlasova