My husband built a very large potato box for planting tubers in. We are getting ready to add the dirt and the potato seeds. Few questions:

1. The box is huge, roughly 4' x 4'. We have purchased a bag of 16 potato seeds that I understand need to be cut in half, as there are 3-4 shoots on each potato. Do we plant ALL the potato seeds at once, or do we add new seeds as the plant growth begins to emerge to roughly 12" and we cover with dirt?

2. These seed potatoes have very long sprouts - should I cut them down before planting? Pic included.

Plant all the seed potatoes at once and don't cut the sprouts off. It is a tiny bit late for you to be planting potatoes so be aware of that.

Even considering we had roughly 8" of snow just a little over 2 weeks ago?

Sounds like a late snow for your area.

Yep, potatoes need to go in early, basically as soon as the ground is workable in the spring. We planted two weeks ago and I'm roughly 400 miles north of you. Snow won't hurt them as long as the leaves haven't emerged. Even if they have, it won't hurt them much. Subfreezing temperatures will kill any above ground leaves, but the plant will just produce new ones as soon as the weather warms back up.

They were planted yesterday. *fingers crossed*

Late harvest, for sure - but hopefully worth the effort of the box.