Drainage options vary by model. Common approaches include multiple drainage holes, a single drainage hole, or an open-ended base that sits directly on the ground. Several vertical planters have detachable trays to collect excess water, and a few raised beds or plastic boxes include self-watering disks or water plugs for reserve/overflow control.
Most listings target outdoor use—ground‑placed and freestanding on patios, balconies, decks, yards, and gardens. Several descriptions also promote indoor or indoor/outdoor versatility for balconies, terraces, and similar spaces.
