The thoughts of umbrella pines

I am smitten with the three young umbrella pine trees Lars gave me that are planted outside my window. Recently two of them have slightly dropped their lower branches, whereas the other retains its pompom shape, and it occurred to me that trees have ideas of their own. They know how and when their branches will create their graceful shapes. I scrutinize all the umbrella pines I see, trying to calculate when mine will reach the roof of our house, when they will touch each other and create a canopy for us to sit beneath.