Think about other decorations; Light up your garden
Decoration: Plants aren't the only thing that make a balcony garden attractive. Look for other decorative items such as statues, lanterns, candlesticks, or some hanging decor, to build the prettiest balcony in the neighborhood.
Lighting: What's the use of all those plants and decoration if you can't see any of it during night time? Give your balcony decent lighting so it never looks dull.