Yes. There are urban planter boxes specifically designed for small apartment patios and balconies. They are usually compact, lightweight, and built to make the most of limited space while still providing adequate soil depth, drainage, and weather resistance.
Common options include narrow trough planters that sit neatly against a wall or railing; modular cube or rectangular systems that can be rearranged as your space changes; railing-mounted or hanging planters that free up floor space; vertical pocket planters and living-wall systems for herbs, leafy greens, and small flowers; self-watering balcony planters with built-in reservoirs for busy renters; lightweight fabric grow bags for flexible placement; and compact raised beds with casters so you can move them toward the sun.
When choosing one, check the dimensions against your patio, confirm that drainage holes and drip trays or saucers are included, and choose UV-resistant plastic, powder-coated metal, wood composite, or other weather-resistant materials. For renters, freestanding and clamp-on railing designs are especially useful because they often require no drilling. Also consider wind exposure, weight limits, watering access, and portability. Use a lightweight potting mix rather than heavy garden soil, and place saucers under containers to protect the patio surface. With the right size and features, an urban planter box can turn even a tiny apartment patio into a productive, attractive container garden.