Hi Jojoe, your little plants are looking great - I overwinter/propagate all winter under fluorescent lights - they're ugly, but the plants love them. Keep in mind that they have to have around 12 hours of light every day, and warmth. I don't know what your climate is like, but if it even gets close to a frost, bring them back indoors. Having said that, some supposedly tender succulents can take a lot of cold - I had some that look just like your little guys in my greenhouse over winter, which here gets to -20 celsius, and they lived!
