Q.Harvesting Spring Planted Potatoes
Planted early, both Yukon gold and reds, in a laundry cart lined with window screening. I have mulched stems as they have grown, in order to have possibility of potatoes up stems to best advantage. My question is, what signs should I look for to know when potatoes [as new] are ready for picking? Flowering? Withering of plant?

Certified GKH Gardening Expert
This article should help: https://www.gardeningknowhow.com/edible/vegetables/potato/how-and-when-to-harvest-potatoes.htm