Mine are making a comeback this year, after almost losing them. I've spread them around a bit, to avoid the situation where I only had a single pot of them and almost lost them. Did the same with requieni and dasyphyllum Major. No longer have concerns about the hispanicum...I secretly think it might be triffids in disguise. The are trying to take over the whole yard.
and look like they might eventually succeed. At least this form does not bite.