temp/humidity- also day length

In a message dated 5/25/00 12:42:13 AM Eastern Daylight Time, mtalt@clark.net 
writes:

<< As for Alchemilla alpina, now...that one may be climate related if
 you're having no problems with it in upstate NY, Claire.  It melts
 away for me same as C. canadensis.  Wyman says the common name for
 this is mountain lady's mantle and Hortus III says it hails from the
 mountains of Europe...hmmm..wonder if we have an altitude situation
 here, too. >>

Marge:

Here is Lincoln Foster (alpinist) on Cornus canadenis:

.........though in nature Cornus canadensis is is found from Greenland to 
Labrador, across the north to Alaska, and southward in the mountains to West 
Virginia and California, this plant flowers and fruits abundantly only in its 
northern haunts.  It may be persuaded, by careful site selection, to grow in 
more southern lowland garden, but there it never puts on such a display of 
flower. And even when it does flower, it sets fruit poorly or not at all.

This behaviour may be solely controlled by temperature, but it is more likely 
a response to day length.............

Marge, the article by Foster appearing in an old NARGS bulletin does not 
reach a conclusion. His garden was in northwestern Connecticut and was hilly. 
 

People are charmed by this plant in the wild.  It is no wonder that the 
challenge of growing it goes on.

Claire Peplowski
E Nassau, NY z4

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