For summer care, this flower is the top choice: the hotter the weather, the more it blooms, and it is very easy to grow.

Jasmine. Jasmine flowers are very pure white and love basking in the sun. Jasmine favors a warm, humid environment, so that it grows more vigorously. Its leaves are emerald green and its flowers are pure white, making a very beautiful accent and giving a refreshing feeling in midsummer. Jasmine's blooming period is also very long.
Bowl lotus. Bowl lotus grows most vigorously in the hot summer. It likes sunny spots the most and prefers moist soil. It grows best at temperatures of 20 to 30°C, and only then can it bloom normally. Seeing a pot of bowl lotus in summer brings a feeling of freshness and vitality rushing over you. It likes fertile clay rich in organic matter and likes strong light.
Moss rose. Just from its name you can tell it loves the sun. As long as it sees the sun, it will bloom. The stronger the sunlight, the more it blooms, and the colors of the flowers become even more vivid. It is also very drought-tolerant. Insufficient sunlight will prevent it from blooming. Watering once or twice a month is enough. Its blooming period lasts throughout the whole summer.