Buy the 2015 Old Farmer's Almanac!
Eyes UpIf you planted seed potato pieces in a shallow trench, then the method is to plant with their eyes up (cut sides down). It will take about 2 to 4 weeks for stems to emerge with this method. You can always replant if it has only been 2 days. Just make a shallow trench (about 4 inches deep), plant, and recover with soil.

Shop Wind Bells in the Almanac General Store