Posted: 13/03/2013 at 10:37
Eyes are where the shoots grow from. The shoots are white because of being in the dark. You decide which way up you want to plant the potato (where there are good eyes on top) and you can rub off the other shoots, if you want, leaving 3 or 4 good eyes or shoots per potato. If there are good shoots or eyes at each end then you can plant them lengthways so that each shoot each end can grow up. The shoots, once the potatoes are planted will all grow up anyway, even if they have to grow round the potato a bit. They seem to know where the light is. Early potatoes, according to trials, are best chitted. Doesn't make so much difference for later crops.