Unsurprisingly, after being eaten to a nub by tiny caterpillars a few weeks ago, violets (Viola labradorica) growing beneath liriope (Liriope muscari ‘Variegata’) and ‘Chocolate’ Joe Pye weed (Eupatorium rugosum ‘Chocolate’, below) have recovered to fill in quickly. My wife complains that the violets grow into every crack in the driveway, which is true, though as…