minimum temp for Nerine?
Nathan Lange (Mon, 30 Aug 2010 15:48:03 PDT)

After a quick google scholar search, the abstracts that I have read
suggest that temperatures above (not below) 17C during active growth
(not dormancy) could induce flower bud abortion in some
species. Optimal flowering occurred following vegetative growth at
temperatures BELOW 17C. One cannot know from only reading the
abstracts whether air or bulb temperature was monitored or controlled
in the research mentioned above. In the real world, the possibility
of the interior bulb temperature matching the ambient air temperature
is nearly nonexistent in most circumstances.

However, if you are growing your Nerine sarniensis in black plastic
pots, like I am, you might improve your flowering by preventing the
low winter sun from blasting the side of the pots during those sunny
winter days (during active vegetative growth).

Nathan Lange