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New Trillium species discovered

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Re: Blooming seasons & unanswered questions

LMann76543@aol.com wrote:
> In a message dated 96-06-16 00:35:46 EDT, you write:
> > what
> >exactly is it that triggers these guys to bloom?  Day length, air
> >temperature, soil temperature, amount of sunshine (no, couldn't be that, we
> >haven't had any here!) or what?  Anyone know?
Apple growers use blossom degrees to plan horticultural practices.  Their formula is for 
every degree over 46(?), they add up the totals daily until it reaches 1,000.  One 
thousand, meaning full bloom. Does anyone out there wish to figure out an iris bloom 
formula??  Maybe someone can get a government grant to do this and he/she can afford to 
buy $45 rhinzones. 

Merle Roberts
Grand Coulee Dam, Washington

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