As others have said, check out the hop growing threads, often times you can buy a cutting from someone there and you'll be all set.
I started my plants in pots for the first couple of years then transplanted into a bigger pot or the ground. The roots will grow through the pot and into the ground if you leave them too long potted. They are now in year 6 I believe.
They will need nitrogen in the growing months and phosphorus in the flowering months. They are photoperiod plants so once the days get shorter they will start to produce hop cones. You know it's time to pick them when they are kind of papery and bounce back when you give them a light squeeze.
You can help the plant by trimming the roots each season, once they really start producing hops, to keep them in line and to help them from spreading too much. Lots of info on YouTube and other brewing blogs. Chop and Brew have a few good videos on growing.
Good luck and have fun.