April 20 - Average last day of Frost
Asparagus - Start 2 year crowns 4-6 weeks before the first frost.
Beans - Plant on April 20, Plant every 2 weeks, (Bush Beans - seeds 2" apart, Pole Beans - seeds 4-6" apart)
Carrots - Plant on April 1, plant every two weeks for continuos crop.
Collards - Start seeds indoors, transplant outdoors, March 15, continue planting every 2 weeks, very cold tolerant, can grow through a large part of winter.
Cucumbers - Start seeds indoors on April 15, transplant outdoors on May 5, plant 3 plants per hill.
Kale - Plant transplants in early spring, transplants should be 4-6 weeks old, plant 8-12" apart, plant up until fall, will grow through winter.
Lettuce - Plant seed directly in garden between March 1 and March 15 , thin to 8" apart, doesn't do well in hot weather, sow second crop in midsummer.
Mustard - Plant seed in garden on April 20, thin to 6" apart, plant again when weather begins to cool.
Okra - Plant seed in garden on May 15, thin to 12" apart, don't overwater - can cause pant to rot, harvest every other day when pods are 2-3 " long.
Onions - Plant transplants around March 15, plant 2-3" apart.
Black-eye Peas - Plant seed around May 15, thin to 3-4" apart.
Peas - Plant on March 5, plant 2" apart, keep moist.
Pepper - Plant transplants May 5, plant 18" apart.
Spinach - Plant on March 15, partial shade, plant in seed clusters 2-4" apart.
Squash - Start seeds indoors on March 1 or plant direct seed or transplants on April 10.
(I painted the paintings above, then I used the ArcSoft Collage Creator.)