SV: Parnassia & Sagittaria

Judy,

I haven't tried Parnassia glauca, but P. palustris, nubicola and obtusiflora. These species germinated well without stratification. It'll take about two weeks in 20 oC. But I would recommend well sterilized medium since the growth during the first year is very limited. Keep moist!!! 

Hannelotte

-----Ursprungligt meddelande-----
Från: Judy Sullivan <SullivanJ@ecostudies.org>
Till: 'propagation@mallorn.com' <propagation@mallorn.com>
Datum: den 16 februari 1999 20:37
Ämne: Parnassia & Sagittaria


>
> Hi all,
> Does anyone have any germination tips for Parnassia glauca
>and/or Sagittaria latifolia?  I had very low germination of both last
>time I sowed them.  I soaked the Sagittaria in refrigerated water for 5
>months, as indicated by another source, then sowed, covered, and kept in
>saucer of water.  They've been out for a month or more without
>germination.  Regular cold-moist strat. treatment yielded one seedling.
>
> I surfaced sowed the Parnassia and stratified for 90 days.
>Unfortunately, they underwent some mouse predation.  Ergo, I'll never
>know whether that was the preferred method or not.  Suggestions for
>either or both appreciated.  Thanks,  Judy
>
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