A turtle being acerb

There was a turtle named Herb
and I don’t mean some proverb
who lived alone in a curb
in this aging Serb suburb
who would love to hares disturb
their quick way to that exurb
through grate he’d extend potherb
and they’d stop there at the kerb
then he’d throw a willowherb
and those bunnies would perturb
their free running action verb
to slowly, seemly adverb
and now with my silly blurb
(it’s literal form superb)
see scarce ware harey from Herb.