Sinningia tubiflora is annoying for me here in Ohio. It won't even think about blooming till November or December. And due to its requirement of direct sunlight that means it must be grown in a greenhouse, which I do not have. I've grown & bloomed (indoors) lots of difficult Sinningia species (like hirsuta, barbata, sp. "Bahia")... but never tubiflora. Dennis in Cincinnati On 11/2/2019 11:50 AM, oooOIOooo via pbs wrote: > 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/… > > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…