Aristolochia-Dutchmans Pipe

valeriepa(z5-6 NEPA)November 6, 2013

Read conflicting instructions on the web. Anyone here that has successful grown Dutchmans Pipe from seed? I need your wisdom. I have the seeds soaking in water. Do they require cold stratification? or light or dark to germinate?
How deep do I sow them or surface sow? I use bottom heat- do they germinate at a warm temp or do I need to put them somewhere cooler.

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morz8(Washington Coast Z8b)

You're finding conflicting information because there are so many different types. Of those most cold hardy and reliably perennial, some are warm/cold/cool germinators and would benefit from sown approximately 70F for 2-4 weeks, move to 35-40F for 4-6 weeks, then to 50ishF for germination.

Germination can be improved in others by a 90 day moist chill, and the types grown as annuals can be sown warm with no pretreatment. Are these purchased or traded seeds, if traded, can you find out which aristolochia...

    Bookmark   November 6, 2013 at 10:38AM
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