[Califreak]

Thanks. The plants are almost two feet tall and flowering. I dug around and not one sign of a spud.
I guess I’ll just wait and see.

[Arrowhead1952]

Just let them grow and eventually you will notice bumps under the ground that are swelling. Later, the bumps will crack the ground surface and that is where each spud will be. Once the plants start turning a dingy green - yellow stalk, the potatoes will be ready to dig.

Whatever you do, never let the plants get too much water. Potato plants and the spuds will rot in the ground.