A seed planting device operable on ground includes a main frame, having wheels, configured to be moved in a planting direction on the ground, a seed hopper, attached to the frame, having a discharge, and a cup-type seed dispenser, having a dispenser axis, disposed adjacent to the discharge of the hopper. The seed dispenser is configured to controllably receive and dispense individual seeds from the hopper and drop the seeds from a seed discharge below the frame. The seed hopper and seed dispenser are pivotally attached to the main frame and configured to rotate about a generally horizontal axis to maintain the dispenser axis in a substantially upright orientation relative to an uphill or downhill planting direction.
