Q.I Just Dug Up My First Attempt On Store Bought Potatoes. Why Didn’t My Baby Gold Potatoes Grow? In Ground 100 Days And Planted As
your notes. My reds did a little better but small. Some were in ground and some in 15 gal. Pots with compost. They all sprouted thru soil and layered compost in a week and I thought it was all good. What happened? Will all store bought work well?

Certified GKH Gardening Expert
Trying to grow from grocery store potatoes is a gamble. Oftentimes they are treated with chemicals to prevent sprouting to enable a longer shelf life. It's best to use seed potatoes. Plus you don't know the variety of the grocery store potatoes and it may not be one that does well in your area. Grocery store potatoes are not treated to prevent disease like seed potatoes.
The odd shapes mean the plant was stressed. Here is more:
https://www.gardeningknowhow.com/edible/vegetables/potato/knobby-deformed-potatoes.htm
https://www.gardeningknowhow.com/edible/vegetables/potato/seed-potatoes.htm
https://www.gardeningknowhow.com/edible/vegetables/potato/can-you-grow-store-bought-potatoes.htm