confusion or am i just wrong

hi guys im following this chart

http://www.growing-life.com/shop/biobizz_grow_chart.jpg

it ses to flush on week 12 and start flowerint at 5-6 weeks into veg then to flush at 11 weeks this means that flowering is for 4-5 weeks.....this cant be right can it ?????

the chart is based on a 2 week veg period, this is why your out on the weeks. but then again its all on the specifics on the breed of weed you are growing. just flush 2 weeks before finish if you want to flush.
lu