WOW, sorry to hear about that!! We got close to 100% germination on taters this year!!
This is grocery store taters that sprouted, we buried them so that the 4 inch +- sprouts were just about out of the ground.
This is Southern States $0.50 per pound "seed" taters planted a week earlier,
No pre-sprouting, so they took longer. Both of the plants were twice this size as of yesterday.
Who knows what they will look like in a week, since we got 3 inches of rain today!!
The grocery store taters were planted "whole" , the seed taters were cut into pieces.
Hopefully, we will be soon!!
My only "trick" is that we switched to PlantTone fertilizer a few years ago. No more 10-10-10 for me!!