Common options include single drainage holes, models without drainage holes, designs with drainage plugs and a sealed inner bowl, and self-watering reservoirs that include water-level indicators.
Typical mounting styles include wall-mounted planters, ceiling- or rod-mounted hangers, window-mounted racks, triple-chain metal hangers, and jute-rope hangers—covering a range of placements from walls and ceilings to windows and porches.
Yes. Some models use a double-layer (detachable) reservoir with a water-level indicator; product descriptions note these can keep soil moist for up to 10 days and help reduce the risk of root rot or overwatering.