I wanted to pipe in with a reminder: Many of these Sinningia bearing tall terminal spikes grow in very bright sun. People bemoan lack of flowering in S. tubiflora, a species often grown by succulentists. The answer is almost always more sun. In the archives you can find a message from Alberto Castillo describing this plant growing in sunny grassland, the stalks supported by surrounding tall grass. I have seen S. tubiflora growing and flowering happily in a standard square 3.25" / 825mm nursery pot. In my heat I must use larger pots, because they don't want to dry completely in the summer. It will grow and flower strongly outdoors in a pot in full Arizona sun and heat, even on a concrete patio. Daytime temperatures may be well over 110 F / 45C. Brightest sun shortens plants; leaves become smaller, extra thick and fuzzy, and may develop slight dark pigmentation on the upper surface and edges. In the winter I take mine into a sunroom, where it never goes dormant. Friends with limited window space stop watering in late summer, let the plants die down and go dormant and winter the pots in a closet. I don't know whether tubers would be hardy through our light freezes in a pot. It produces tubers plentifully. Next time I divide mine I'll leave a potfull outside and answer this question. I strongly suspect it would be hardy in the ground here. I haven't tried because of rodents. Stem cuttings root in water. Take them before terminal buds appear. I have also had flowering failure due to buds being eaten by an unidentified small green caterpillar. We have no native Gesneriaceae in Arizona, so it must be a generalist feeder. Outdoors, rodents eat the tops. So far nothing has dug up tubers to eat. Leo Martin Phoenix Arizona USA Zone 9b today Sent from ProtonMail mobile _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…