Suddenly it got cold and we have had the first snow; not unexpected for this time of year. Not the same I can say about the Hepatica americana seeds I found germinated, with their radicles quite extended! This is most interesting because Hepatica species have immature embryos at the time of collecting (May-June) and need periods of warm and then cold for embryo development before germinating.
This year I have been careful to collect and keep separate a few Hepaticas forms that I am personally interested in. All the germinated seeds belong to a collection made in 30 May from a plant with intermediate characters between americana and acutiloba (although the saying goes hybrids do not exist between these two). None of the other Hepatica collections are germinating and I sowed quite a few already.
Speaking of which, this is an excellent time to start sowing many species that need to undergo a cold/moist period to germinate, ideally outdoors – in our climate, the natural temperature fluctuations are the best to break the dormancy of many species.
If someone needs a bit of help, here’s what I do, plain and simple:
I’ll be back as more warm/cold games and sowing practices unfold…