Re: Frost/freeze tolerance

i'm seeing the same thing in others'ardens and around the city in the large mass plantings on the highway medians.  I think it is because the foliage on the north and west sides of things are sheltered from the morning and early mid-day sun and warm up a bit slower which may cause less ice crystals to form in and on the plant parts which is what generally causes the damage.

Also, the clump with more damage is also on the South side of the house and may have been a bit further along. It was exposed to more sun and warmth and so more exposed stalk tissue and more sensitive to freezing than those still inside the fans.

Someone else may have a better idea of what is going on.

Paul Archer
Raleigh



-----Original Message-----
>From: little bit <littlebit63_38024@yahoo.com>
>Sent: Apr 20, 2007 10:38 AM
>To: iris@hort.net
>Subject: Re: [iris] Frost/freeze tolerance
>
 What I
>find strange is that I have the same No ID clump on
>both ends of my deck. The one on the west side did
>better than the one on the South side. West side has 3
>open blooms and lots of buds in color. The other clump
>has no open blooms, and only 2 buds in color. That
>clump lost bloom stalks and buds.. Both are the same
>distance from the house and were planted at the same
>time.
>
>  Tomorrow will tell a lot. I plan on getting out
>there and cleaning up everything that was damaged. I
>will take notes on everything and let you know what
>did or did not make it for me
>
>    littlebit
>  West TN 
>
>
>--- pharcher@mindspring.com wrote:
>
>> No problem at all.  It's not really on any
>> significant time restraint.  I also have more to add
>> to my list as it is apparent more of them had
>> damage than just their stalks.  The next few days
>> will tell me if the buds in their sheaths made it or
>> not.  I did figure as mentioned earlier that what
>> the plants look like about three weeks after such a
>> freeze would be a good indication.  If your weather
>> has been dreary and/or cold it may take longer to
>> assess.
>> 
>> Are you saying you "lost" stalks/buds or the plant
>> from the freezing?
>> 
>> Of course if a whole plant was lost or significantly
>> damaged enough to cause serious rot (or loss of the
>> fans) that would be a good thing to know and record
>> and would be something different to consider.  I
>> would consider that an absolute freeze tolerance... 
>> all or nothing.
>> 
>> 
>> Paul Archer
>> Raleigh, NC
>> 
>> 
>> -----Original Message-----
>> >From: little bit <littlebit63_38024@yahoo.com>
>> >Sent: Apr 10, 2007 9:41 AM
>> >To: iris@hort.net
>> >Subject: Re: [iris] Frost/freeze tolerance
>> >
>> > If it isn't raining this afternoon, I will be more
>> >than happy to help with this. I didn't feel well
>> >yesterday so I didn't do more than a quick stroll
>> >through the beds. Of course if it is raining I will
>> >still help but it may take a couple of days to get
>> the
>> >report. 
>> >  I do know..
>> > Northwest TN
>> > Our lowest temp was 25
>> > Two nights of below freezing temps.
>> >
>> > Lost
>> >  Daughter of Stars
>> >  Navy Blues
>> >  Day Dreaming
>> >  Captive
>> >   
>> >
>> > Right now Pop Art is trying to open. This bloom
>> was
>> >covered for several days with a bucket. It doesn't
>> >look bad at all.
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