Sorry to hear about your trigona's roots... The good news is that they do propogate easily. If you've taken some cuttings, just set them aside unpotted until about mid-April. It won't hurt them - well, I'll qualify that... A healthy cutting can sit out for 6 months and still root. I've taken cuttings in fall, which is a bad time to try to root any Euphorbia, and set them aside until spring and had them root nicely. I'd say you have a pretty good chance of restarting your plant.

Denise in Omaha

Thanks Denise but,

Can stem sections be used, i.e. with no tip, or do they have to be tip cuttings?

I have propagated them from stem cuttings. Just follow DeniseÂs instructions & keep it dry.