each wind makes the leaves bud--this year's bamboo

The first summer wind started to blow. The bamboo shoots were sprouting from the rough soil of a path by the bamboo forest. While looking at the bamboo I entered the forest. I found this year's bamboo leaves and trunk to be longer. And I found the bamboo hard with many joints. Everytime the wind blew, new leaves came out. So this year's bamboo grew so fast like this.