Sometimes, flower arrangements arrive so stiff and contrived and packed so tightly into a tinny throwaway vase that it’s easy to forget that they are (a) alive and (b) natural. Not so at Polux Fleuriste. Bouquets from this Mott Street storefront are extraordinarily fresh—what you’d get at the Greenmarket if the guy in overalls understood that lowly goldenrod should be kept far away from luscious snapdragons. And they arrive wrapped in appealingly homey brown paper, stained wet from the stems. Basically, it’s a bit of country in the city—except that it delivers. Bouquets start at $50. (248 Mott Street; 212-219-9646.)