Severed cacti didn't root
Wrote in the summer about some grafted cacti I purchased (on hylocereus). I severed them from the hylo, and tried to root them, but alas did all this too late in the season and they didn't root. I thought perhaps they were rebutias, but I believe they are notocactus/parodia's. Nice little balls of spines anyway.
My question is, will they toodle along alright for the winter and then root in the spring? Is there something I need to know about unrooted cacti? Their colors are good, and they aren't mushy at all. Like they are perfectly happy without the roots.