If you think all potatoes are the same you have never had a home grown potato. I think potatoes from the garden are wonderful and they are so easy to grow....
Potatoes can be planted by seed but this can take a long time and they will be need to be started indoors and then transplanted. I believe the best way is to use seed potatoes. These are tubers that have many eyes or sprouts. I cut mine so there are at least two eyes on each potato.I have found that presprouted potatoes develop quicker than whole seed potatoes. (I cut my potatoes and let sit out for 2 days so they can get a skin on the side that I cut) I plant them when I know there will only be 2-4 weeks until my last frost. Potatoes do the best when the soil is warm 60-70 degrees.
Potatoes like good soil I make sure my soil is full of compost. I then plant my potatoes eyes up in a trench and 4 inches deep and about a foot apart. I always cover my potatoes with about 2-4 inches of soil.
It will take about a week for the sprouts to come up. After my plants get about 6 inches tall I then "hill" them I start putting dirt all around my potato plants so they look like little "hills" I do this about every two weeks keeping dirt right up to my potatoes. When your plants are full size you can mulch them I don't...I just sit back and wait for my potatoes leaves to dye back.
After the leaves have dyed back I know that I can now harvest my potatoes. Just lift the entire plant and search for those yummy spuds.
I dig mine up and store dirty...I just wash and cook them.
* Don't eat green potatoes they would have an off flavor and could make you sick.
I would love to hear how you grow your potatoes.