You can cut a potato in half and plant it as long as it has sprouted eyes.
Without the eyes sprouted it won't grow a new potato or potatoes but if you wait until the potatoes have grown some eyes and cut it in half and plant the eyes facing up you can grow potatoes from it.
You can plant store bought potatoes with eyes but need to cut the eyes off the potatoes with part of the potato intact.
Simply take a knife and cut a slice of the potato off with the eye and then plant the potatoes with the eyes facing up in around 6 to 8 inches of dirt.
Potatoes sprout eyes as a way of germinating and growing new potato plants.
You an cut the eyes off the potato with part of the potato intact and grow new potatoes from them.
Potatoes sprout the eyes when they are stored in a space with a temperature of 68 F which makes the plant or potato think it's spring and time to regenerate new potatoes.
You cannot plant just the eyes of the potatoes as they will not grow properly.
In order for the potatoes to grow from the eyes they really need the energy that is in the potato so you should cut the eyes off the potatoes with part of the potato intact.
Then plant the cut part of the potato with the eye and then water.
Be sure to bury the potato eyes at lest 6 inches deep.
To grow potatoes from the potato eyes dig a trench that is 6-8 inches deep.
Next plant each piece of potato (cut side down, with the eyes pointing up) every 12-15 inches, with the rows spaced 3 feet apart.
If your space is limited or if you would like to grow only baby potatoes, you can decrease the spacing between the potato plants.
You can expect at least five to six new potatoes for each potato you plant.
There's something so magical about pulling up a potato plant and seeing so many new potatoes attached to the small one you planted months ago.
A potato that has grown eyes is still safe to eat so long as it's firm to the touch and its skin isn't shriveled.
Sprouts, however, are not edible and should be removed and tossed.
Small new potatoes can be ready as early as ten weeks.
However, full sized potatoes take about 80-100 days to reach maturity.