Ei guhde wie.
Es geht mer net innen Kopp enei...
Nice to meet another Frankfurter here. Welcome aboard!
Your question about sowing _P.alpina_ is perhaps better answered by Juerg
STEIGER (who is also lurking here, Hi Juerg!). From my own limited
experience with this species I would prefer lime-rich soil. The seedlings
were very sensitive (in vitro) and did not survive for prolonged periods of
time. 8-(
Kind regards
Jan