Description
Smyrnium perfoliatum, commonly known as perfoliate alexanders, is a biennial native to southern Europe, North Africa, and parts of western Asia, where it grows in open woodlands and scrubby hillsides. In its second year, it sends up stout, ribbed stems adorned with bright chartreuse-yellow bracts that seem to pierce through the stem—a distinctive “perfoliate” trait that gives the plant its name. These bracts surround airy umbels of tiny yellow-green flowers, creating a luminous presence in late spring to early summer. It prefers full sun to partial shade and tolerates a wide range of soils, provided they are well-drained and not overly dry. Though short-lived, it self-seeds gently and is not invasive, making it a reliable accent in naturalistic plantings or among late-season tulips. After flowering, the plant dies back and should be removed to make room for emerging perennials.
