Sativa s.o.s.

i been growin this bag seed staiva for like 11 weeks now.....it seems to have all the leaves dying...and its really really airy .....i have other plants in the same room that are beautiful...im wondering if this is becuz genetics? or seomthin else cuz its not taking shape.....or is it a long process til it whips into shape???

sativas do take a lot longer and generally do not yeild the same density of bud as indica dom genes. if you are growing under cfl this will be exaggerated because the light is less intense. a pic would help. are the leaves just yellowing or are they getting crunchy? sativas also tend to be sensitive to heavy feeding. they don't like it.