Posie Pots

Posie Pots is a St. Louis-based manufacturing company that produces sustainable, self-watering planters designed to simplify plant care. Founded by mechanical and aerospace engineer Kay Wells, the company leverages 3D printing technology and additive manufacturing to create pots made from eco-friendly, corn-based polylactic acid (PLA). Each planter features a patented, closed-loop sub-irrigation system that allows plants to draw moisture from a reservoir through capillary action. This engineering-focused design provides steady hydration for up to 30 days, which helps prevent common issues such as root rot, overwatering, and root binding while utilizing significantly less water than traditional potting methods.

The company provides a solution for both casual plant owners and those seeking low-maintenance greenery for homes and workspaces. By combining horticultural science with aerospace-grade engineering, Posie Pots aims to make plant growth more accessible, especially for individuals with busy lifestyles. The brand has scaled from a local startup to a national presence, supported by regional accelerators and innovation grants. In addition to its consumer-facing retail operations, the company emphasizes community engagement by partnering with local institutions for STEM education and workforce development in advanced manufacturing.