Hi Stephen, In my experience, the winter-growing sorts are triggered by temperatures (chilly nights) and probably also the calendar. An occasional flood in the greenhouse does not usually start them growing in mid-summer. Cool nights in June do not start the bulbs to flowering. Jim On Thu, Aug 13, 2015 at 7:50 PM, Stephen Putman <email@example.com> wrote: > I'm trying to learn about Haemanthus. I've had reasonable success with > the summer growing and the evergreen species, but less satisfactory results > with winter growing. > > What is the trigger for new growth in these winter growing species in > autumn? Is it temperature? This would mean to wait for an appropriate > temperature and then water. If the trigger is water, then the issue would > be at what temperatures would a moist medium be beneficial, and when fatal? > > Any other bits of knowledge about this topic would be gladly received by > me, and possibly others who are not yet expert in the growing of these most > interesting plants. > > Regards, > > Stephen Putman in central Delaware about a mile from the Delaware Bay, in > the middle of the Cedar Swamp Wildlife Management Area. No potted plants > in bloom, but a nice show in the garden. > _______________________________________________ > pbs mailing list > firstname.lastname@example.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > -- James Shields email@example.com P.O. Box 92 Westfield, IN 46074 U.S.A.