I winter sowed my first batch of alpine/rock garden seeds yesterday.
For these I just used my regular method, since I had the materials on hand, but I did change the ratio. I used a roughly 60/40 mix of moist vermiculite and plain perlite. Hoping for the best, prepared for the worst.
Calin,
I think a great many plants whose seeds would typically sprout in warmer conditions would eventually do so, even when winter sown. Take, for example; tomatoes, squash and cucumbers that are tossed into the compost pile in fall and sprout with abandon when the weather warms. I'm even winter sowing many more fast growing annuals than I used to, and it's working out very well.
For perennials, especially, just plan on keeping your containers for a year or two longer ...just in case. I'm still pulling seedlings from containers winter sown three years ago.
