Freezing bulbs: Duration vs. low temperature
Nathan Lange (Wed, 16 Jan 2013 14:03:08 PST)

My nearest min/max thermometer to my Alstroemeria plants is a Taylor
min/max approximately 20 feet away out in the open about 5.5 feet off
the ground. It reads 32F in an ice water bath. It recorded 27F last
night. I failed to mention before that the Alstroemeria plants in
question are under a Liquidambar styraciflua tree near the edge of
its canopy with about 90% of the tree's leaves still intact, with the
lowest branches about six feet off the ground. As of 1:30 pm today,
the Alstroemeria plants are in full sun and have yet to show any
damage. Saturday night was the coldest night here so far this winter
at 25F but I couldn't help but cover the plants that night.

I apologize for referring to them simply as "Alstroemeria plants" but
most were rescued last year from Roy Sachs' old property and their
parentage is currently in question. Some were growing in his
greenhouse and I don't know for certain if they were there for
protection or for winter flower production, although probably the
latter. By the way, if anyone has any information regarding
location/species/cultivars of any of Roy Sachs' plants on his old
property, regardless of how vague the info might seem to you, please
contact me privately.

Nathan

At 12:49 PM 1/16/2013, you wrote: