Penstemon 39pensham wedding day39 forms upright stems crowded with ivory white bells above a neat clump of narrow semi45evergreen foliage pensham penstemons are bred to withstand lower temperatures and inclement weather making them a perfect choice for uk summers pensham wedding day flowers continuously from early summer through to october the understated elegance of this hardy perennial ensures it blends effortlessly into herbaceous borders 75cm 40303441 spread 60c