starting trees from seed
 

i collected a number of paperbark maple seeds (acer griseum) last fall and
stuck them in the freezer over the winter.
i have a couple of questions about getting these seeds to germinate and
hopefully grow into trees (albeit small ones in a pot) in the future.
firstly, what is the ideal medium to sow seeds in?
i have previously tried peat pots but had no luck as it appears that the
peat pots remained so wet that the seeds rotted.
secondly, when would be the best time to sow these seeds?

peter brolese
Vancouver, British Columbia, zone 8