I placed a jar in Tennessee,
And round it was, upon a hill.
It made the slovenly wilderness
Surround that hill.
The wilderness rose up to it,
And sprawled around, no longer wild.
The jar was round upon the ground
And tall and of a port in air.
It took dominion every where.
“Sprawling” –similar to the prior “slovenly” description– again highlights nature’s disorderly and muddled character. However, “sprawled around” now fits the iambic tetrameter, implying that the nature is somehow tamed by this jar. 
 “No longer wild” tells us that the jar tamed (and perhaps corrupted) a previously pure environment.
Anecdote of the Jar