Be careful not to plant these food plots too small. Deer will start feeding on the sprouts as soon as they begin to emerge. The name of the game is safety in numbers...so plant a good sized area to assure that you will have a successful plot. You will see deer come from far distances to get at a good pea plot.
It is important to have your PH to an acceptable level and there is moisture in the ground before planting. Even if you just lightly cover the seeds and add fertilizer in a weed free bed, you will have an excellent fall attractant...even after the first frost.
If there is sufficient moisture in August, you can start planting at that time. Watch the weather and get the peas in the ground just before rain works well. Winter Peas can be planted as early as July as long as there is sufficent moisture and they get established. They will typically survive a drought if they get established.
Date: Spring as an early food source, attractant and plow down followed by a fall crop (fixes nitrogren back into the soil). Fall plantings...Aug. in north zones - Sept. in mid zones - Oct. in south zones).
Rate - 35 - 50 lbs./acre
Depth - 1/2 inch