I applied in-person. The process took 2 days. I interviewed at Pike Nurseries (Atlanta, GA) in Feb 2011
Interview
The interview process was extremely simple and cursory. Basically, if you present yourself well and appear enthusiastic, you can get a job. From what I've observed, though, even these two traits are not always necessary. Depending upon the time of year, there is a lot of opportunity. Best times to apply are February and October.
Interview questions [1]
Question 1
why would you like to work here?
how much plant knowledge do you have?
how much retail experience do you have?