Answer:
What can be grown without sun or soil and can either provide nourishment or deliver poison?
Give it a toss, and it's ready, but not until it's dressed. What is it?
I come out of the earth, I am sold in the market. He who buys me cuts my tail, takes off my suit of silk, and weeps beside me when I am dead.
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
What has ears but can't hear?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?