I found this on one site:
"Seeds are easy to start but tangle quickly in paks. Maybe this is why I never see it for sale at the nursery."

I'd sow it late in the spring so that as soon as its got enough leaves on it you can set it out.
It doesn't sound like a good idea to plant several seeds in one container. I'd put them in several different ones so they don't tangle.

Thanks very much for that advice, and I'll be sure to avoid the tangling problem. That sounds like it would be frustrating!
Cathy

I've done Asarina a few times from a late winter sowing. I agree totally that the vines tangle easily. You might try a few seeds each in small water bottles, after germination space them through your other containers to avoid contact with more vines.

T