BEST DOUBLE-SIDED
Railing Planter
Key Specs
- Dimensions: 7.4 x 16 x 8 inches
- Material: Plastic
This planter has a smart design, with two side-by-side planters that flank a railing. That means there’s no need for mounting hardware and you can move them around as you please. They’re made from all-weather resin and are self-watering—a major bonus—with reservoirs at the base that’s set below the soil and roots, with draining holes at the bottom.
They’re also extendable and can fit on railings of various widths, including round rails. The planter is available in dark green and terra cotta, in addition to the fresh-looking white that’s shown.

BEST WITH COCO LINER
Key Specs
- Dimensions: 36 x 8 x 8 inches
- Material: Metal
Coconut plant fiber liners hold water exceptionally well, allowing plant roots to take up moisture as needed, and also providing excellent drainage because they’re porous.
This coco liner railing planter has a thick tuft of the material set inside a steel frame, with a black powder-coated finish to prevent rust. The 36-inch-wide planter comes with hooks and mounting hardware, and it’s available in 30- and 48-inch-wide sizes.