Gardening

vine production will stop, and tuber production will kick into high gear. You can stop hilling at that point. Once the vines die back you can harvest, but if the soil's dry, you can leave them in the ground for awhile. You want to let the soil dry out anyway as harvest approached to toughen the skins, which will improve storage. It will also make a slightly smaller (less water weight) but tastier potato.

If you want to store over the winter it's all about timing. If your vines dry out too soon (before September), storage over the winter is dicey. So if you want early potatoes, leave room in your garden for a large batch of taters started a bit later (for me this is around May 15), and the second batch will store better.

I'm not sure starting some indoors like you did is a good idea. I wouldn't be surprised if those plants don't produce as well.