Hello All, I do not think that light is the factor for keikies on P. lueddemanniana. I'm fairly convinced that temperature is the factor. If the temperature is above 28� C. then it produces keikies instead of flowers. I have seen on my P. lueddemannianas that all have nice flowers in winter and spring and in summer they produce keikies because of the high temperature. Kind regards Peter Hieke
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