I'm not sure if 2 weeks of stratification is enough, but I'm not an expert. Nor do I think the smaller-seeded clematis need soaking of any kind, that one I'm more certain of. Given that they reseed so freely in my garden, I think you should:

Remove their tails, pot them up, cover lightly with soil, then some grit, soak pots, drain well, place in sealable plastic bags.

Leave them in the garage all winter. That's what I've done. Then they sprout on their own in the spring when ready. Oh, and keep them out of full sun while in the garage; I cooked some seeds accidentally once.

I might also add that about now, mine start putting out fresh growth again, even in the cold. This new growth roots very easily, which is a lot easier than propogating by seed!

Thankyou Michael. I will do just what you said. I will try some cuttings also. I think your supose to use root powder? I should't plastic bag those right? How about powder them, put them in a small pot, then in my cold frame? I realy love SAC. And I have out buildings, arbors, and wooden fences. So my idea was to plant them everywhere. And that would be exspensive at 20 bucks each. So I thought I would do it on the cheap and have fun at the same time. Thanks..Filix

I sure do wish you had seen my postings earlier this summer, I've probably sent out 50 rooted sweet autumns that were 1-3 feet tall! I dug up babies that had started from dropped seeds in my lawn and let them grow in a huge pot. I may have some more for next spring if you are interested.
Joyceann

You can root them by taking the appropriate cuttings (see link), dipping in water, then rooting powder (not necessary, though helpful), then in a gritty soil. Then I'd keep the medium lightly moist, not wet, and covered with some sort of clear plastic box for 6-8 weeks.

Here is a link that might be useful: Clematis cuttings

Thankyou Michael. great link too. You mentioned a gritty soil. Add sand to it? Or vermiculite? And thankyou too joyceann. That was very kind of you. I would never refuse a free plant.....Filix

I think im well on my way. Just one more thing. When you take cuttings, can I take them now in late november. Or do I have to wait until next year?...Thanks