Pure sativa regulars from equatorial lines can run fourteen weeks or more in flower, which makes them awkward indoors when the rest of the tent finishes at nine. Keeping them under a separate timer or flipping them several weeks ahead of everything else are the usual workarounds. Realistic flowering ranges for a number of long season regular lines are compiled at https://breederregularseeds.com, which beats the optimistic numbers printed on most packs. They are rewarding plants, just not ones to squeeze into a mixed run.