What is the difference among annuals biennials and perennials?

Answer 1

Annuals are planted in the spring and will die off in the fall, or usually when the first hard frost hits.

Perennials will become dormant in the fall/winter and "come back to life" next spring.

Some plants can be considered as both depending on where you live.

For example, a Hibiscus won't make it through an Up-State NY winter (in which case it would be an annual), but it will last year round in Florida, or CA.

Perennials are classified by Zone Hardiness. Lower the hardiness zone, the colder the weather the plant can handle. A geographical area that is inn Zone 3 means that the average winter temps go down to -20 deg F. Zone 10 means that the ave. winter temp. is around +30 deg F.

Answer 2

Perennials come back year after year; annuals are planted once and live till the winter frost and die forever.

Answer 3

Annuals are flowers that bloom all summer and then die with the winter frost such as petunias or celosia. Perennials are flowers that rebloom every year such as iris, daylilies, or roses.

Answer 4

Annuals only live 1 year and live on by seeds. Perennials usually live through the winter and can spread each year and need dividing eventually.

Answer 5

As a tree is" a woody perennial rising from the ground usually with a single trunk"

it cannot therefore be an annual.

Answer 6

An annual will grow and die in the same season. A biennial will grow and die within two years. A perennial will grow for several years.