When the kids were all at home I used to plant and store quite a few potatoes. One year I had a lot more than we could use before they got soft and sprouted in April. I picked out a couple bushel of the best ones, put them in milk creats and buried them a couple of feet deep. I put a piece of plywood over the creats and mulched the area well after I filled the hole. I dug them up in the spring and they looked pretty much like they did when I burried them. They did sprout quite fast after I dug them but they lasted until the baby potatoes were ready in July. I've done it a few times since with similar results, I expect if there was one bad potato in the lot that they would all rot.The first I think is Japanese hops. The second weed is giant ragweed.
Very nice looking berries.
If the potatoes continue to dry up, nothing to do for them. However, doesn't mean you have to dig them. They will store in the ground just fine, and dig a few when you need them. My Norlands will die off in a few weeks and they stay in the ground until I want to eat a few. Other than some potential rodent eating a little, they will be fine until the ground freezes.