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Aug 15, 2016 2:16 PM CST

I've read that A. californica, as opposed to other species, needs cold stratification to germinate. is this true?
Aug 15, 2016 6:54 PM CST
Name: Sandy B.
Ford River Twp, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
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Seed Starter Vegetable Grower Greenhouse Region: United States of America Region: Michigan Enjoys or suffers cold winters
Welcome to NGA, @dianelivia ... that's a good question (to which I don't know the answer, I'm afraid... hopefully someone else will be able to provide the information that you need!)
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer
C/F temp conversion
Aug 16, 2016 12:58 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Welcome! to NGA

I've never tried to grow Aristolochia californica but...

They are native to the areas of California I grew up in: Sacramento Valley, Coast and Foothills - areas that get freezing temps but not much below that. The seeds have the reputation of taking between 2 months to 2 years to germinate. I have never seen them growing anyplace else suggesting that they need some pretty specific conditions to germinate.

My best guess is that Aristolochia californica does need a chill period to germinate well but that chill period is temps below 40. Put the package in the refrigerator for the winter or plant them in pots and leave them outside for the winter. Of coarse, that last suggestion depends upon where you live. They are native to zones 8 - 10. Also, I have only seen them growing in shady damp situations.

Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
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