Plant Stands for a Balcony: Tiered Shelves, Stability and Drainage

A good balcony plant stand has a per-shelf weight limit stated by its maker, enough space between shelves for your plants, and a wide, level base. Put the heaviest pots on the bottom shelf, stand it against a wall away from the railing, and set a saucer under every pot so runoff stays off the unit below.

A stand holds ordinary pots. If you would rather plant straight into a tower or wall pocket, vertical planters covers those, and lightweight planters helps you pick pots that keep each shelf light. The balcony planters hub has the rest.

Plant stand weight limits per shelf

A plant stand’s weight limit is the first number to find. Look for a figure the maker states, and check whether it applies to each shelf or to the whole stand. A per-shelf limit assumes the load is spread across the shelf, not sitting in one corner.

Compare that with what a pot weighs. University of Maryland Extension says a 20-inch container filled with moist potting mix and plants can weigh 100 pounds. A pot that size is a heavy load for any shelf, so large pots belong on the floor.

Many stands list no limit at all. Where a maker gives no figure, treat the limit as unknown and keep the pots on it small.

A stand’s own limit is not the whole story. A full stand concentrates its load on a small patch of floor, and no stand label tells you what your balcony carries. Our guide to balcony weight limits explains who to ask and what to add up first.

Keeping a plant stand steady in wind

Plant stand stability starts with where the weight sits. The RHS advises a low center of gravity for pots on exposed roofs, and the same rule works for a stand: heavy pots on the bottom shelf, light ones on top.

Wind is the next risk. University of Maryland Extension warns that tall plants in relatively small, lightweight containers can be blown over, and that breezes dry container mix faster. Walls reduce air circulation but give protection from strong winds, the same source says, so a stand against the building wall is steadier than one in the open.

Level the stand before you load it, and check that every foot touches the floor. The RHS also says tall plants need secure fixing to buildings or rails, so keep tall plants on the floor rather than on a high shelf.

Drainage and saucers on a plant stand

Plant stand drainage needs care because each pot drips onto the shelf, the pots below and the floor. The RHS calls drainage holes essential and says to keep them clear. University of Maryland Extension says all containers need holes or slits to drain.

Saucers stop the runoff. University of Maryland Extension says drained water can stain concrete and wood decking and that a saucer helps when you garden above a neighbor’s balcony. Empty saucers after watering, the same source advises. The RHS suggests using a saucer in summer and removing it before winter. Our guide to planter saucers and drainage covers the choices.

Check that each saucer fits the shelf. A pot and its saucer both have to sit inside the shelf’s depth, so measure before you buy.

Which pots suit a plant stand?

Pots on a plant stand should be small and light enough to stay under the shelf limit when wet. Plastic, resin and fiberglass are lighter than terracotta, the RHS says. On a stand in full sun, choose pale pots over black ones, because dark containers can heat the mix enough to harm roots (University of Maryland Extension).

Herbs suit a stand well, because the pots they need are small: University of Maryland Extension puts basil, thyme and mint at 2 to 5 gallons. For shrubs and tall plants, use the floor and see tall planters.