They even make planters built to be bollards. EG https://www.tymetal.com/crash/crash-bollards/security-planter/ https://www.tymetal.com/crash/crash-bollards/se

They even make planters built to be bollards. EG https://www.tymetal.com/crash/crash-bollards/security-planter/ https://www.tymetal.com/crash/crash-bollards/security-plante... or https://www.grainger.com/category/security/access-barriers-and-crowd-control/decorative-security-barriers-and-bollards?attrs=Item%7CSecurity+Planter&filters=attrs https://www.grainger.com/category/security/access-barriers-a...