A sectional planter is provided with an interior volume defining a planter portion with a flange and a tongue and groove for positively connecting the sectional planter to at least one additional sectional planter, where the tongue and groove connection allows for easy removal of the sectional planter from the base of a tree or post after assembly. The sectional planter can hold a variety of plants, shrubs, bushes or other floral or decorative items. The sectional planter may be combined with one or more additional sectional planters to form a geometric shaped planter. The geometric shapes formed with two or more interconnected sectional planters may be a circle, an oval, a square, a star pattern, a rectangle, a triangle, a trapezoid, or a parallelogram. In at least one embodiment two or more sectional planters are combined to form to encircle a tree.