Amazon.com: Tree Planter. 3,000+ results. Results. Check each product page for other buying options. Price and other details may vary based on product size and color. +3. Kante 18 Inch Dia Round Concrete Planter, Indoor Outdoor Large Plant Pot with Drainage Hole and Rubber Plug for Home Patio Garden, Weathered Concrete. Options: 4 sizes. 1,675.