Re: Re: CULT: TB winter hardy?

In a message dated 7/23/01 1:14:27 PM Eastern Daylight Time, 
ellengalla@yahoo.com writes:

<< The danger zone for freeze-thaw seems to be USDA Zones 4-7. TBs seem 
 to be the prime target presumably due to size of rhizomes. >>

Ellen,
      When I lived in Kentucky, I noticed that late planted TB Irises were 
especially prone to that darn freeze-thaw.  One thing that made the problem 
especially severe is when there was a major rainfall event that saturated the 
soil, followed by a sharp turn to freezing weather.  The soil would freeze 
when saturated, and it would make ice crystals in the soil.  Sometimes, I saw 
rhizomes impaled by an ice shard.  I don't recall actually losing a plant as 
a result of that.
     Are the wild Ditch Lilies [Hemerocallis fulva] blooming up that way?  
Down here, the ones I have in the garden are about to rebloom.

Mark A. Cook
BigAlligator@aol.com
Dunnellon, Florida   USDA Zone 8b--frost pocket.  

 

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