SV: Specific seed requirements

Hi Karen ! Pimpinella rhodanta was donated by me in the 98-99 NARGS Seed Exchange. Like many species of the Umbelliferae family it may require a chilling period, and I would suggest a 70-40-70 cycle leaving the seeds at 70 for 4 weeks then letting them stay in the fridge for at least 8 weeks, and then shifting them back to 70. Germination might occur at all three stages, but unless all germinate, or you already have enough seedlings go through the complete cycle.I have never grown P.rhodanta from seed myself, but got these from a botanic garden. Don't know its origin. It's hardy in Sweden, so it should do well in Michigan as well. 

Paul
-----Ursprungligt meddelande-----
Från: JErnst209@aol.com <JErnst209@aol.com>
Till: propagation@mallorn.com <propagation@mallorn.com>
Datum: den 14 februari 1999 17:58
Ämne: Re: Specific seed requirements


>I received my seeds from the NAGRS Seed Exchange yesterday.  ( I should note
>that I got 23 of 25 of the ones that I asked for, and the other two were ones
>that I wanted, and hadn't realized it! <G>
>
>Anyway, there are several of them that I received that I cannot find any
>germination requirements for. ( I checked all of the online databases, Hortus
>and The AHS A-Z book).  Can someone fill in the blanks for me?
>
>Those that I need spec's for are:
>
>Ajuga australis
>Persicaria filiformis (Tovara)
>Pimpinella rhodantha ( What is the hardiness of this also?)
>Semiaquilea adoxoides
>
>Thanks in advance.
>
>Karen Ernst
>Highland, MI USA
>Zone 5
>
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