Answer:
There are several different kinds, but the one you pick doesn't do its job. What is it?
What lies in a tunnel of darkness. That can only attack when pulled back?
Grows from the ground, bushes and grass, leaves of yellow, red and brow, unruly plants, get the axe, trim the hedge back down.
It is destruction made out of thin air, You hear it howl and give a prayer, Through barns and houses it will tear. It is a deadly funnel, Of violent and twisting air.
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
What is always coming but never arrives?