sowing iris


Hello!
Last year (-95) I was sowing the following Irisis

I. Chrysographes
I. Magnifica
I. Setosa ssp. canadensis
I. Sibirica
I. Sibirica 'cambridge'

I sowed them in pots in ordinary plantsoil.
Let them rest for 24 hours inside and then
took them outside to the snow. d. 4/3 (march).

Only 10 out of 17 seeds of Iris Sibirica 
germinated. the date was 3 may.

Where did I do wrong?

Does anyone know what Iris species seeds must have
a freezing period?

Gunnar Andersson, Stockholm, Sweden
ekaguan@kkeka.ericsson.se



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