As shown in our catalog, you will see we offer a wide range of concrete planters that range from small to large. all of our planters have a drain hole for the removal of excess water. when planting some of the larger planters, we recommend placing approximately 4″ of small pea gravel in the bottom of the planter before placing the.Cast stone concrete cement outdoor urn plant pots for sale for container gardening. large and small size, commercial business and residential. campania.