Colchicum questions

Jim McKenney
Tue, 31 May 2005 08:42:38 PDT
Jane McGary wrote: 
>C. cupanii... is a very good grower in the bulb frame but has not survived
>in the open rock garden.

Jane, you've mentioned this circumstance ( "has not survived in the open
rock garden")in a number of postings about other bulbs in the past. This
intrigues me. It helps to know when bulbs die (when it can be determined).
Here on the east coast, many bulbs don't make it through the summers in the
garden. Some don't make it through the winters. It helps to know when they
run into trouble. Last year, I was unpleasantly surprised to find some
tulips in a raised bed rotting in early June. Many colchicum do the same

Because so many of us grow bulbs from you, your experiences are particularly
significant. It's a mystery to me, for instance, why Crocus goulimyi is an
easy garden plant here but will not do for you as a garden plant. I'm
tempted to offer you corms ripened here in Maryland to see if those would
survive at least the first Oregon winter. But I can understand why you might
eschew corms from a notorious botrytis sump and do your own experimentation.

Can you tell us more about why you think Colchicum cupanii fails in the open
rock garden? And maybe tell us a bit more in general about the problems
peculiar to your climate? 

Jim McKenney
Montgomery County, Maryland, USA, USDA zone 7, where the roses on the
pergola are beginning to bloom freely. 

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