With the expected low temperatures, make sure you protect those tender plants that you might have put out a little too early! Check out this article written a few years back about protecting plants from cold injury...
https://sampson.ces.ncsu.edu/2010/01/how-can-i-protect-my-plants-from-cold-injury/
For more information contact your local Cooperative Extension Center and ask for the Commercial Horticulture Agent.