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Re: Lilium help please

Greg,

Germination behavior is extremely variable among lilies.  A lot of 
species from summer rain climates [eastern North America, east Asia] will 
germinate without chilling.  But planting in the fall or winter to allow 
chilling may help for some, and is probably the general method if you 
have no specific information. Lilies native to western US [dry summers, mild 
winters] typically 
germinate at low temperatures, but commonly need some time at warmer 
temperatures first [ie, sowing and holding indoors for a month or so and 
then exposing to winter conditions. [this would be called a 
"warm-cold-warm stratification".

There's a discussion of this in Norman Deno's SEED GERMINATION... , also 
in various books dealing with the lily genus.  As for Cardiocrinum, 
you're right that alternation of "artificial winters" and "artificial 
summers" may get the seed to germinate.  Dr. Deno suggests here, that 
fresh seed may germinate more easily than dry-stored seed.

Loren Russell, Corvallis, Oregon

On Fri, 9 May 1997, Greg 
Ruckert wrote:

> Hi  all seed raisers,
> 
> This season I bought in many species of Liliums from Archibald's, for my
> wife.  I have been told that to germinate Cardiocrinums I need to give a
> double refrigeration.  Do other species require cold treatment?
> 
> Greg Ruckert
> 47 Allinga Avenue
> Glenside 5065
> South Australia, Australia
> Telephone 61 8 83795123
> Fax 61 8 83642003
> 
>
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