In my opinion you are right on topic!! (we all have our own gardens and desires for specific info!) I have a link to a website regarding Harm free dog training (now this is Off topic
) I've seen these methods work so well, you use a "clicker" and treat bag - the idea is that instead of trying to "dominate" your pet, you simply offer an animal which loves food - a treat for doing the behavior you are looking for - My brother has an 8month old labrodoodle and they've been using this method - it is amazing! Good luck - it can be a headache but so worth it! (I'm a dog walker!)
http://www.amazon.com/s/ref=nb...
Sorry the link is so long, the books are at Amazon. Simple easy to understand ideas where your animal is treated respectfully... even a puppy!
Okay...back to the sedum I haven't used a cold frame here in Seattle it would only be needed for a week or so
we don't get sustained low temps. I'm just guessing that it would keep your plants/cuttings warm and dry enough to be happy and begin rooting. You would have to remember to water them so they continue to grow but I'd love to follow your experiment (you could create a thread about what you're doing and update us) I know there are several people who'd be interested in that!