Kalanchoe Species, Dusty Kalanchoe, Mealy Kalanchoe

Central Phoenix -- Having said K. farinacea grows in central Phoenix, I must add that my 20 year old plant is in a pot that comes inside ...Read MoreDecember to mid-February. It blooms profusely each year with intensely orange tubular flowers (see photo). It is very slow growing and has sculptural twisting stems. Cuttings root easily, but have done poorly when put into the ground. It is not winter that kills them, but summer. We are in a flood irrigation district and I think it makes our "dry heat" too humid for some succulents.

Where can I buy this plant online?

I just bought this plant. How often should I fertilize it?