[KayJay]

Thanks for this link. I tried SPs from a grocery store 'tater last year, and they rooted but formed no slips, probably because they were sprayed with something. This year, I finally found organic SPs, but it was already mid-May. I was worried it would be way too late. I planted the slips in mid June. That guy seems to be reassuring me that they'll be fine, it's better than planting them too early. They've grown quite well so far, totally loving our hot and humid summer. Can't wait to see if I'll get any taters when it's time to dig them up.