This is a question many owners of south-facing apartments ask themselves. Although sun rays favor flowering, in practice they represent a real endurance test for plants. The temperature of the substrate in the pot can exceed even 40°C, and the root system can literally "boil". Choosing the right species is half the battle. The other half is the right pot, which will become a thermal barrier and protect the roots from overheating. Discover the TOP 5 sun-resistant balcony plants that can handle even the most sun-drenched conditions!

Pelargonium is a classic that never goes out of style. Its fleshy stems and leaves store water, making it handle high temperatures exceptionally well. What's more, the more sun it gets, the more abundantly it blooms.
Why choose it?
PATIO Tip:
Trailing Pelargoniums look best in wide balcony boxes that allow them to hang freely. It is worth choosing models with thicker walls, which will provide better insulation for the substrate.
If you are looking for a spectacular "flower storm" effect, Surfinia will be a hit! It creates long, hanging shoots covered with dozens of flowers. However, it requires regular watering, even twice a day during hot weather.
Advantages of Surfinia:
PATIO Tip:
Surfinia is best planted in large pots with an irrigation system that will maintain constant substrate moisture during your absence. This is a practical solution, especially on a south-facing balcony.
Verbena is one of the most underrated plants for a sunny balcony. It loves full sun and high temperatures, and it blooms continuously from spring until the first frosts. Its small flowers, gathered in spherical clusters, create intense patches of color: from white and pink to deep red and purple. Importantly, Verbena is resistant to short-term drying out and handles hot days well.
Why choose Verbena for a south-facing balcony?
PATIO Tip:
Verbena looks great in medium and large garden pots, both as a standalone plant and as part of a composition. It is worth choosing light-colored models that will limit the heating of the substrate in full sun.
Commonly known as the fan flower, it is one of the best plants for a sunny balcony in pots. Its semi-trailing stems create dense, blooming cascades in shades of purple, blue, pink, and white. What makes it stand out? Above all, its exceptional resistance to high temperatures and wind. Unlike Surfinia, it does not require the removal of faded flowers because it is self-cleaning and does not lose its aesthetic appeal even during intense heat.
Why is Scaevola the ideal plant for a south-facing balcony?
PATIO Tip
Scaevola looks best in hanging pots and long balcony boxes, where its stems can fall freely.
This is a plant that naturally grows in hot, dry climates, which is why full sun provides ideal conditions for it. Its silvery-green leaves limit water evaporation, and its aromatic, purple inflorescences not only look beautiful but also repel mosquitoes. Lavender brings a Provencal atmosphere to the balcony and blends perfectly with natural materials.
Why is lavender the ideal plant for a south-facing balcony?
PATIO Tip
On a sunny balcony, lavender grows best in full sun and in well-drained soil, so make sure the pot has drainage holes to prevent the roots from rotting.
Are all balcony flowers suitable for a south-facing balcony?
No. Many popular species prefer partial shade. On a very sunny balcony, plants resistant to drought and high temperatures work best.
How often should I water flowers on a sunny balcony?
During hot weather, even daily, and some species (e.g., Surfinia) twice a day.
Does the color of the pot matter?
Yes. Light-colored pots reflect sunlight, which means the substrate heats up more slowly.
Can I water plants in full sun?
Avoid watering plants in full sun at noon. It is best to water in the morning or evening to avoid leaf burn and excessive water evaporation.
Which perennial flowers are suitable for full sun?
Perennial flowers such as echinacea, rudbeckia, woodland sage, and perennial marigolds are well-suited for full sun.