> I wonder if the above instruction is correct or not. I have read that
> S. purpurea seeds need a period of cold weather in order to germinate. I
> once tried to put the seeds in the refrigerator for about 4 weeks to
> simulate the cold period. It didn't work either.
You are right, Sarracenia seeds do need stratification, and it is odd that
T&M would omit that information as they are usually pretty good about
that.
However, just putting the seeds in the refrigerator does not equal a
stratification. The key condition here is *moist cold*. You need to sow
the seeds, and then either put the pot in the refrigerator or leave it
out through the winter. You don't say where you are so I don't know your
winter temperatures, but it takes several weeks at approximately 40
degrees F. to do the trick. Here we just sow them in the fall and let
nature do the rest.
If you still have them, you can put the pots into the refrigerator now or
outside, and you may still get germination.
Good luck!
bob