A planter for the mechanized planting of sea oats in beach or other difficult planting areas. The planter includes a calibrator that automates the release of sea oat plants through various release tubes as the planter moves over a chosen planting area. The calibrator controls the release of each plant at re-selected distances. Growth agent is introduced through ancillary mechanisms either through the release tubes or just behind each tube. A plow in front of each release tube creates a furrow into which each plant is deposited, and a series of grates are strategically positioned to control the reflow of planting soil back into each furrow after release and to then smooth any remaining soil adjacent the filled in furrow. The planter is towed behind a tractor through nominal hitches, and a chair and planting support rack is provided for an operator positioned in the center of the planter.