Concrete planters are perfect for use outdoors. They looks contemporary and withstand even bad weather conditions. We showed you how to make a modern cement planter and even an outdoor planter wall. They both aren’t very easy and fast to make but there is a way to make a cool concrete planter without these troubles. You can use pavers glued together to form nice square planters. To glue one paver to another use landscape-block adhesive and give it at least 24 hours before moving the planter.