Xiao-he just showed his sharp corner, and a dragonfly was already standing on his head. What season is the poem?

Early summer. "Xiao Hegang showed sharp corners and stood on his head for a long time." The time sequence has not yet reached midsummer, and the lotus leaf has just exposed a sharp corner from the water, and a small dragonfly is standing on it. A "talent show" and an "early stand" are taken care of, vividly depicting the scene of dragonflies and lotus leaves leaning against each other.