sativas can always be put in bondage....I have an Arjans Ultra Haze #1 plant that is about 4 feet tall after the top 4 feet has been tied over. Its under CFLs, and has been in flower since Dec 6th. I expect that it will be finished around mid March. I started a NCDG plant at the same time, both were put into flower at the same time, and the NCDG went into the cure jars last week.
It really depends on the strain... most seed banks will tell you what the flowering time is.