Seed germination temperature
MARK MAZER AND FREDRIKA MAZER (Tue, 19 Oct 2010 04:41:20 PDT)

time

In my experience, the majority of Cape bulbs that I sow (about 100-200 pots
per year) will begin to germinate when the daytime highs are about 75F and
the night time lows are about 50F. Generally, I get three or four flushes
of germination over a five to eight week period beginning in early to mid
October here in northeast North Carolina. When I lived in northwest
Connecticut, the time frame was two to three weeks earlier.

Mark Mazer
Hertford, North Carolina USA
USDA zone 8