|I would like to know which perennials will survive 30 degrees. ones that I don't have to cover if there is a frost.|
|African Iris, Blackberry lily, Bulbine, garden Mum, Daylily, Mexican Daisy, Leopard plant, Peacock ginger, Dianthus (pinks), Ruella and jasmines are all frost hardy. You'll find a list of recommended frost hardy plants along with their descriptions in a publication from the university. Here's the website to visit and download the publication : http://edis.ifas.ufl.edu/mg035
Best wishes with your garden.