Answer:
A fruit on a tree. A tree on a fruit.
Green but not a lizard, white without being snow, and bearded without being a man.
A time when they're green. A time when they're brown. But both of these times, cause me to frown. But just in between, for a very short while. They're perfect and yellow. And cause me to smile.
What can be grown without sun or soil and can either provide nourishment or deliver poison?
You throw away the outside, eat the inside, and throw away the inside. What is it?
What is it that makes tears without sorrow. And takes its journey to heaven?