S. Bard wrote:do you just break of the top above the soil and plop that into water?
Yup! I use scissors and cut at the soil line. Some plants (like lettuce and basil) I just eat. But tomatoes are the only ones I've been able to reroot. I also managed to divide 4 borage who all sprouted in the same cell.
The bad part is, I didn't label these. So there are 3 different types (a red, green, and black). So if I give them away it's all a gamble.