Charlton, Mass.-based brewer Tree House Brewing Company has garnered a cult-like following since its debut in 2011 and is one of the highest rated and fastest growing craft beer brands in the country. Obtaining one of its heavenly elixirs in the Boston area, though, is normally an impossible task, as Tree House sells exclusively out of its facility just southwest of Worcester—until now. A pop-up beer garden on the lawn of the south garden at the Prudential Center debuted recently, which thirsty brew aficionados can enjoy for its final two dates, July 18 & 25 from 5–9 p.m. Savor 12- and 16-ounce pours of eight drafts for $8 a glass, along with live music from Berklee College of Music-affiliated artists, food and wine.