I would recommend using a hot house or heat pads or anything to build up some heat. A nice 100°F+ with intermittent mist will have them rooting like crazy. Not sure the best hormone to use, I've rooted a bunch without anything.
Depending on your set up a good basic mix would be 50/50 potting soil (better yet nursery grade soil with pine bark etc) and perlite.
I bet they would root just hanging out in the shade with water a few times a day too.