Kaz Andrew, flickr

This weekend I bought these little tropical plants and I'm wondering if it's ok to plant them.

I know it's going to be warm the next couple of days but I'm worried about the frost that still might pop up at night.  Guess I should ask Alan Kasper.  f you have any experience with this I need your help.  I was at several garden shops and the rose bushes are ready to be put in and some trees, but I'm wondering about some flowering bushes or flowers themselves.

I would love to know what you think?  Can I plant these tropical trees today?