why is there drops of moisture on the tip of of my lilly

They do this a while after they've been watered, have seen it myself on mine.Not sure why, but it doesn't signify anything wrong.

its called guttation. water has moved up through the stem and out of the tiny pores on the underside of the leaf. they tend to do this in the morning and as the day warms up the water evaporates off. grass does this and with the damp atmosphere is responsible for some of morning dew.