A sunny balcony can be hotter and windier than a garden at ground level. Observe how many hours of direct sun the space receives and whether nearby walls reflect extra heat.
Choose containers with drainage and enough soil volume to protect roots from rapid drying. Mulch can reduce moisture loss, while grouping compatible plants creates a slightly more sheltered microclimate.
Plant selection should reflect your location, exposure and ability to water. A short site assessment prevents many expensive replacements.