You're going to have a hard time getting roots with nighttime temperatures lower than 65. If you can root them indoors or on the south side of the house would be your best bet.
The first one appears to be either a Mammay or a Golden Mammay in need of sunlight. It might even be a Mammay seedling with all that green. The second is Stoplight, the third is Andreanum, and the last one could be quite a few different things, again it needs more sun. I would guess that it's probably one of the Davis hybrids although, it could be Fishbone.
we have a small green house covered with freeze cloth and the temps in the mid 70s when freezing out and mid 80s + lately we really have not had to many problems being close to the ocean.
thanks for help with the ids.
Pretty good names already mentioned. But, in post #10, your third picture is not a croton, but a cordyline or Ti plant. And the last picture, is that a seedling coming up through the brick pavers, or a cutting laying there? Thanks for sharing though.