How to Choose a Planter Size for a Small Balcony

Most balconies in Indian flats measure somewhere between three and six feet deep. That is enough room for plants, and not enough room for a pot chosen on looks alone. Three numbers settle the question, and all three appear on the listing.

Outside diameter, not the plant

The diameter printed on a planter is the widest point of the pot, usually the rim. On a narrow balcony the rim is what you will walk past every morning, so measure the clear floor width first and subtract the space you actually need to move. A 14-inch pot on a 36-inch balcony leaves a comfortable path; two of them side by side does not.

Depth decides what will grow

Depth matters more than width for most balcony plants. Herbs and small flowering plants are usually content in six to eight inches of soil. Tomatoes, chillies and small shrubs want twelve or more. A wide, shallow bowl looks generous and gives a deep-rooted plant very little to work with, which is why a plant can look healthy for a season and then stall.

Filled weight is the number people miss

Damp potting mix runs roughly 1.2 to 1.5 kg per litre. A 20-litre planter therefore lands somewhere near 25 to 30 kg once filled and watered, before you add the weight of the pot itself. Ceramic adds a great deal; plastic and resin add very little. If the pot is going on a railing bracket or a shelf rather than the floor, that total is the figure to check against whatever the bracket is rated for.

A practical order of decisions

• Measure the clear floor width and the depth of the balcony.
• Decide floor, railing or stand, because that fixes the weight budget.
• Pick depth for the plant, then diameter for the space.
• Check drainage: holes, no holes, or a saucer supplied.

Grouping instead of upsizing

Three medium pots usually read better on a small balcony than one large one, and they are far easier to move when you are cleaning or when the monsoon arrives. They also spread the load rather than concentrating it in one spot, which is worth something on an older floor.

Every listing on this shop states outside diameter, height, whether drainage holes are present and whether a saucer is included. Where a maker does not publish a figure, we say so rather than estimating it for them. If you are unsure which size suits a particular corner, send us the measurements and we will tell you what fits and what does not.