[pbs] Fall is here in San Jose
Arnold Trachtenberg
arnold at nj.rr.com
Sun Sep 21 21:15:18 EDT 2008
Bloom initiation has been discussed here at length. You may try
searching the archives.
I think there are many factors that cause a flower to bloom.
I have Arums in a basement under HID lights that know when fall is
approaching in spite of the fact that I never change the day length on
the artificial illumination. The temperature is relatively constant as
well.
Arnold
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