Pistol,

OSU shows potato planting dates as Feb. 15th (at my end of the state) through Mar. 10th (at your end of the state), so I think I'd go ahead and plant them. Since it has been a fairly warm and fairly dry winter, I think they'd be fine going into the ground at the current soil temperatures. There is very little chance they'll get tall enough and out of the ground early enough to freeze, although you never know in our erratic spring weather. If you plant them down about 8 inches or so, even though they have already sprouted, it still will be several weeks before foliage emerges from the ground.

If you don't feel ready to put them into the ground yet, just leave them in the garage and let the sprouts continue to grow. I've planted with sprouts 4-6" long before and they have done just fine.

If wet soil, very cold weather or a hectic schedule keeps you from planting for a few more weeks, you can snap off/cut off the sprouts an inch or so from the potato and they will regrow just fine.

If you plant now and you get a good stand of foliage by late March and then a very cold spell occurs, you can protect the potato plants by holding handfuls of hay or leaves in your hands above the plants and shaking it gently over the potatoes so it falls down like snow and piles up on top of the foliage but doesn't pack down hard enough to snap the foliage. After the cold passes, gently brush the leaves or hay away from the foliage and keep it there as mulch.

Potatoes are semi-cold hardy so I think you could get away with planting them now.

Dawn

Should I go ahead and cut them up? I'll sure
have to be careful not to damage the sprouts.
Or am I worrying too much?

You might be worrying a tiny bit too much. Potatoes are pretty tough.

If the potatoes have several sprouting eyes each, you might want to cut them up. Remember that each eye should sprout and give you a stem and then your potatoes will form on each stem.

So, if a potato has....let's say nine eyes, and they all sprout, they are going to be pretty crowded. If, on the other hand, you cut that seed potato into three pieces and each piece has 3 eyes and each piece gives you a total of 3 stems, then the stalks will be only one-third as crowded the 9 would be, so you should get an increased yield. Does that make sense?

For what it is worth, research has shown that you get the best potato production from seed potatoes (whole small seed potatoes or cut-up pieces of a larger seed potato) which weigh 2 to 3 ounces each and which have 2 to 3 eyes each.

Hope that answered your question.