I recently visited Pink Hill, a serpentine barren at Tyler Arboretum @TylerArboretum in Delaware County, PA. What an interesting and incredible place - full of fascinating geology, history, and of course, botany! The site is named after the pink flowers of Phlox sublata - the Moss phlox - which, during spring, spatter the ancient parts of this grassland like a fine mist. Luckily, I was there to witness the Phlox in peak bloom! Though it is common in the landscape, it was totally cool to see it i