Why is this done? To get the lilies on man's schedule. Easter lilies need to have a flower bloom for Easter. If our greenhouse delivered lilies with no flowers, the people would be angry. They would not want to pay. So, the grower, my boss, works hard at trying to have the lilies ready for Easter; he wants each plant to have at least one flower blooming. Since I work for my boss, I am the one who often dances with the lilies moving them place to place.
More could be said about the care of lilies, but as I have been reflecting on this, I have had this thought, "Our desire to do things on our time rather than God's creates a lot of activity and headaches." Why can we not be content with God's time? In many ways, not just Easter lilies, we try to manipulate God to work on our time and not on his. We often pursue good things, if not God things, but we often want to work in our own time frame. This results in much needless activity; sometimes this involves much frenzy and stress.
Of course, would I have a job if we humans wouldn't try to control the lilies?
P.S. Check out Luke 12:27-28