Jerusalem Artichokes also known as sunchokes are easy to grow, in fact they are considered invasive, but only if you don't eat them.
They should be planted in the fall but my mom, who has grown them for many years, just gave them to me a few days ago, so I will plant them now but I will not be able to harvest any roots until next year. I'm taking a wait and see approach and because they can be invasive I don't think they are likely to die off.
Just dig a hole, 6 to 8 inches deep, plop in the tuber, cover and wait. I planted them next to the chicken coop because they grow really tall and will provide some shade for the chickens. Their flowers look very much like a sunflower but sadly they have to be cut off as soon as the plants blooms to promote root growth.
They are delicious roasted on their own as a potato substitute or with other root veggies and they have a light artichoke flavour. Really delicious.