refrigerate hardy Lycoris sprengeri seedling pots?

M. Gastil-Buhl
Sun, 05 Jan 2014 08:49:10 PST
Should I refrigerate pots of L. sprengeri seedlings to simulate the  
cold winter they expect?

After reading the 'Garden Lycoris and More' pdf from the pbs wiki  
Lycoris page I realize the Lycoris sprengeri I have been anxiously  
watching and waiting to re-emerge are not due to leaf out until spring  
and expect a cold winter, hardy to zone 5. Here in my mild climate the  
6 inch plastic pots have sat on a shelf on the porch without leaves.  
They had leaves their first year but not the second year. I did not  
give them an artificially cold winter last year. I am guessing perhaps  
I should have put the pots into the refrigerator for a couple months.  
I may try this now.

These are from PBS BX 297-4, germinated December 2011. By July 2012  
they had produced bulblets 2 cm long by 0.5 cm wide. They had leaves  
that year from July through at least November. Here is a photo record:…

Have others grown this species from seed in a mild climate without  
artificial cold?

- Gastil
Santa Barbara, CA
approximately usda zone 9b and a colder microclimate than the official  
map showing climate of zone 10a.

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