For seasoning I prefer Montreal Steak Seasoning with a little extra cracked black pepper.
If you can saw* it down the middle, leave the bark on, and paint/shellac/wood glue the ends it should cure up nicely. Just be sure to store it where temps do not get too high. Rapid moisture loss even with the bark intact will split stave in the exact worst possible places!
*I am recommending sawing because it seems to me most cedar has plenty of knots and splitting may be a rough proposition. Your mileage may vary, offer void in all 50 states and all Canadian Provinces. Tax, title, and license extra. Consult with your doctor before taking and immediately stop taking if you see changes in bowel movements or vision.