I also have 'Alpenglow'/'Vera Higgins' Graptosedum, and Anacampsoros Rufescens. They look much like the Echeverias, are they a related plant?

Welcome to the forum! Hybridization is very interesting to me as well and I did a bit of research on the subject a while back.

With succulents, hybrids are mostly achieved by cross-pollination. There's also tissue culture (mixing genetic material) which is amazing, inspiring work but done in a lab. I could explain it more but you're better off doing your own research on that.

With cross-pollination it's important to keep a record of what you're mixing. A paintbrush is handy for many flowers or a cat's whisker (poor kitty) or other filament for more tubular flowers.
Some species will hybridize with others readily and some will not mix. Some genus' are much "easier" in general, like Aloes. Even crossing genus' is possible in many cases and it doesn't hurt to try but it helps to know what's been achieved in the past for frame of reference. Also, many hybrids are sterile and will not produce seeds so if you succeed, propagate vegetatively (by offsets).

When you successfully cross-pollinate and produce viable seeds and then are able to grow those seeds into new plants, there will be variation in the offspring. Some, or all may be identical to the mother. Many or most may not sprout. You have to watch the plants grow to see if anything different is happening. If you have a few successful hybrids, usually the best one is chosen for propagation and there you have it!

There's lots of information out there, lots more than I have. It's a great goal and you should find out as much as you can. I hope to create some hybrids of my own one day, maybe soon:)

Here's an interesting hybrid along with some info on its origin, originally shared with us by Jeff.
Click the link below and good luck!

Jeff, someone in your neighborhood!

Click the link below

-Ryan

Welcome aboard here. I don't know about the shelf life of pollen, but New World Crassulaceae (Pachyphytum, Graptopetalum, Echeveria, Sedum, to name four) are notorious for their intergeneric promiscuity.

Your 'Alpenglow' and 'Vera Higgins' are examples of that - Graptosedum is a cross of Graptopetalum and Sedum. Almost all of the NWC cross with each other, the exception, I believe, is Dudleya.

I'm in Kamloops - where are you?