By Ronhowles
United Kingdom 
Are wallflowers annuals?
30 May, 2012
Answers
The common bedding wallflower is a short lived perennial which is usually grown as an annual...or technically a biennial (sown one year to flower the next)
There are however, perennial wallflowers called Erysimum
30 May, 2012
There are annual as well as perennial varieties.
30 May, 2012