when seed vendors say the flowering time for a certian strain is 8-9 weeks, does that mean to start flowering the plant after 8 to 9 weeks of vegitative growth? or does it mean that it takes 8-9 weeks for flowering to complete after flowering starts? Can somebody give me some estimated "rule of thumb" advice for how long something like AK-47 should be in vegitative growth and how long it should be in the flowering stage? Thanks