Portable mini greenhouse creates a compact growing space that fits balconies, patios, or small yards while still offering vertical room for plants. The metal frame uses an electroplated finish to help resist rust, while the PE grid cover allows ample sunlight to reach seedlings and tender plants. Overlong cover edges can be pressed down or weighted to add stability and help reduce heat loss around the base. A large roll-up zippered door provides wide access to simplify watering or harvesting from inside the structure.