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 28º 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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