These days, enlightened diners want to know where their food comes from. Lauren Johnson and Marissa Mandel, owners of the wine, beer, and spirits boutique Bar & Garden, think we should be just as curious about the source of our drinks. They place a premium on organic ingredients and natural production methods, so their thoughtfully stocked shop, in what was once a nondescript liquor store on a commercial strip, carries mostly small-batch labels. Mandel’s background as a landscape designer informs the shop’s aesthetic; arrangements of indoor plants complement the beautifully curated tastings, and planters are among the gift items available in this airy, leafy, and friendly emporium.