Hippeastrum calyptratum (and cold weather)

Rick Buell via pbs pbs@lists.pacificbulbsociety.net
Thu, 04 Jan 2018 19:02:17 PST
You may find that calyptratum is more fragrant in the evening then during the day? Mine is not yet blooming size, so I can't say for sure.
As for the vulnerability of the bulbs to this extended coldness, you might try piling more snow on top of them as insulation. I took the added precaution of putting a thick layer of dry, milled peat moss over a small bed, and then covered it with a piece of rigid plastic.
I guess we'll all get to see what this winter leaves us. Good luck!
Rick Buell
New London CT 
On Thu, 1/4/18, Nicholas plummer <nickplummer@gmail.com> wrote:

 Subject: [pbs] Hippeastrum calyptratum (and cold weather)
 To: "Pacific Bulb Society" <pbs@lists.pacificbulbsociety.net>
 Date: Thursday, January 4, 2018, 8:02 PM
 Like everyone else on the east coast of the
 USA, we're we're experiencing a
 cold start to 2018 in North
 Carolina.  The low temperatures aren't
 particularly unusual, but they are
 persisting longer than in recent
 winters.  I'm starting to worry
 about how deep the ground might be freezing
 and whether the frost will reach the
 South African and South American bulbs
 that I have planted in the past five
 years.  I guess I'll find out in
 In my greenhouse, I have my first
 Hippeastrum calyptratum flowers on a
 four-year-old plant.  I am very
 pleased with their appearance but somewhat
 disappointed by their fragrance. 
 After reading descriptions of "burning
 plastic," I was expecting something
 really nasty, but all I can detect is a
 very faint odor reminiscent of wet
 paint.  I guess my nose isn't as
 sensitive as a bat's.
 Pictures here:  https://sweetgumandpines.wordpress.com/
 Happy new year.
 Nick Plummer
 North Carolina, USA, Zone 7.
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