13. Annual, perennial? What does it mean?
Domesticated Species and Exotic Garden Varieties
Some of the species we offer are categorized as "Domesticated" species
and are not considered native North American Wildflowers. We also offer a
few exotic garden varieties which have been genetically altered from their
true wild form. For your convenience, we have denoted the "Domesticated"
species and the exotic garden varieties with the symbol D (green box)
throughout the catalog. These species will produce a beautiful display of
color the first year, but in most situations will not reappear the following
season. In order to achieve the same colorful display, the "Domesticated"
species and exotic garden varieties will need to be replanted each year.
Domesticated Species and Exotic Garden Varieties
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.