I've always been told don't plant till after Easter to be safe. But this year the vernal equinox falls a month before Easter cause Easter falls at the end of April this year. When do I plant?
When to Plant Outside This Year in Zone 7?
Certified GKH Gardening Expert
As long as you wait to put plants out after the middle of April, you should be okay (though I normally wait till at least the first of May). Here in Zone 7, our weather tends to be eratic. Here is a chart that may also help: http://www.veggieharvest.com/Vegetable-Planting-Calendar/zone-7-vegetable-planting-calendar/