| What is an Annual, Perennial, Biennial? The following colored symbols are used throughout the catalog to indicate the
life cycle of each variety.
A=Annual (blue box continuing the letter "A")
P=Perennial (red box containing the letter "P")
B=Biennial (yellow box containing the letter "B")
Annuals- Plants that perform
their entire life cycle from seed to flower to seed within a single growing season. All
roots, stems and leaves of the plant die annually. Only the dormant seed bridges the gap
between one generation and the next.
Perennials- Plants that
persist for many growing seasons. Generally the top portion of the plant dies back each
winter and regrows the following spring from the same root system (e.g. Purple
Coneflower). Many perennial plants do keep their leaves year round and offer and
attractive border or groundcover (e.g. Tickseed, Shasta Daisy, Ox-Eyed Daisy). Note: When
starting perennial plants from seed, blooms will be observed in either the spring or
summer of the second year and each year thereafter (e.g. Ox-Eyed Daisy planted in the
spring of 1999 will not bloom until the spring of 2000).
Biennials-Plants which
require two years to complete their life cycle. First season growth results in small
rosette of leaves near the soil surface. During the second season's growth stem
elongation, flowering and seed formation occur followed by the entire plant's death.
Annual/Perennial- A plant
can behave as an annual or a perennial depending on the local climatic and geographic
growing conditions. In the southern portion of the United States, these plants tend to
grow much quicker than in the north due to the warmer weather and extended growing season.
For example: A Black-Eyed Susan would behave as an annual if grown in Louisiana; where as,
if grown in Ohio, a Black-Eyed Susan would behave as a perennial. |