If your leaves have holes, they hide them well. They look very healthy to me.
A bit of sand would have been good. Does the sand help with digging the potatoes out? The sand is supposed to help them form loosely in the soil, but I suppose there has to enough for an appreciable difference. There's still time to mix some in, if I decide to go buy some. If I do, then I'll probably add sand to only two of the grow bags to compare results. Although that may not be fair since I will be growing different varieties.
Still looking forward to growing the sweet potatoes even if it seems far away and still a few last minute decisions.
