For Summer deciduous 'bulbs' it is light levels in Winter, when they are in leaf and photosynthesising, that is important. Day and night length as well as temperature may be important for flowering, and more hours of light will mean more hours of photosynthesising. Peter (UK) On 19 October 2016 at 18:55, Sarah Hinckley <sarahh@suiattle.net> wrote: > Hi Robin, > > I am a beginner with SA bulbs. None of the ones I have have begun to > flower yet. I have had the greenhouse less than a year. I am just > presupposing that the light levels in western Washington might be too low > to get these bulbs to grow and flower successfully. > > I really appreciate hearing about others experience! > > thanks, > > Sarah > > > On 10/19/2016 10:50 AM, Hansen Nursery wrote: > >> .... > > > , although surely more lengthly exposure to light in the summer should >> compensate for less intensity of light to some degree the further north >> you >> live. Can someone comment on this? >> >> Thanks, >> >> Robin >> >