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Stratification question

Posted by saponaria 7a (My Page) on
Fri, Jan 20, 12 at 20:29

My echinacea specifically says it needs stratification. Now it's been a really warm winter here. Crazy warm. My seeds will get cool weather outside but I doubt there will be much freezing weather. Will that be enough? A handful of frosts over the next 6 or 7 weeks? I'm only about 6 or 7 weeks out from the last spring frost the last few years. And this year is the warmest winter I can ever recall. So what say ye? Stratify inside for a while or just wintersow and stick it outside and hope for the best?

Follow-Up Postings:

RE: Stratification question

  • Posted by morz8 Z8 Wa coast (My Page) on
    Fri, Jan 20, 12 at 23:10

40F and moist part of the hours in a calendar day, as nights, is cold enough. If you were stratifying indoors, you would be using your refrigerator which is approx 40F, not freezing. With some seeds, the fluctuating temps between day and night can help to encourage germination.

RE: Stratification question

I'd put them outside.


RE: Stratification question

A friend of mine started Echinacea under her grow light last year with no cold stratification at all and had good germination from what I can remember. Don't think you will have any problems setting them outside now, even if you don't get much more cold weather. ;-)

RE: Stratification question

  • Posted by morz8 Z8 Wa coast (My Page) on
    Mon, Jan 23, 12 at 14:25

I've started them inside with no pre treatment too and had good germination but seed was fresh. For most types echinacea, the general suggestion is a brief moist chill if reluctant to sprout. E. paradoxa and tennesseensis may do better if kept warm and moist 3-4 weeks, then chilled, then warm again.

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