Make this formal the apple fell from the tree at the same time the cherry tree bloomed

The apple fell from the tree concomitantly with the blossoming of the cherry tree.

make it even more formal

The apple descended from the tree in synchrony with the blooming of the cherry tree.

make the word apple formal

The pomaceous fruit descended from the tree in synchrony with the blooming of the cherry tree.

make the cherry tree formal as well

The pomaceous fruit descended from the arboreal structure in synchrony with the blossoming of the prunus avium.