I sure hope not.I planted to early a few years ago and had to replant all my tomato plants and flowers. I had them covered but it just got to cold.I think if it does look like a frost I will cover my hostas just to try and give them a little help.But boy didn't today turn out to be so pretty.Did ya drag the grill out?Radar-My hostas, iris's and daylillys are growing and look so pretty. I sure hope it doesn't hurt them. It will be like a couple of years ago when everything got burnt up by frost and looked like crap the rest of the year. I lost two of my japenese maples that year.:mad2: