Crap yield so far. We put out a half dozen containers for our youngest grandchild (3YO) to plant spuds. Harvested the first two containers today. Weed free all summer and no bugs, also a very cold and wet summer. Total spuds about 2 kilos. Well make some mashed taters for dinner, using those and have him help cook the tubers.\ I'm happy with container growing, something we've done in the past - just think I need a hoop house to keep temps up and the wet under control.
Great job! I have tried several times in several ways and failed to harvest potatoes. I even tried the "rub with wood ash and plant under the new moon" method. They do make a pretty plant. I think the Irish Potato Famine curse followed my people to America. At least the banshee lost the trail.
Harvested the rest of the containers, total yield for the summer - between 10 and 15 pounds. Considering I put in zero effort, I'm happy,. Already had some mashed potatoes for dinner. Good stuff.