Crocus sativus blooming?

Gastil Gastil-Buhl
Wed, 19 Feb 2014 16:23:08 PST
Unlike many Crocus, a cold winter is not required for Crocus sativus to flower and be perennial. 
See this reference's abstract:

The abstract says more cold is required to initiate bloom than to form the blooms in the corms. And even that "cold" is only 17 C, or 63 F, hardly what I would call "cold". 

They grew fine in my garden until critters ate them. I have always been fascinated how long their leaves grow. 

- Gastil
Santa Barbara, California
Approximately USDA zone 9b or 10a

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