The world of Wyoming Penstemons is a whirlwind of pinks, purples, and blues. They intrigue me because they grow and blossom in some of the most inhospitable soils Wyoming can dish out; sand, rock, clay, windswept hillsides, fully exposed southern faces. Their ability to beautify the extremely inhospitable is always a wonderful surprise, and they don’t do it with a shy, humble approach – they do it with bravado!
One of the spectacular examples of a true blue flower is a Penstemon that grows on blow-out sandhills. It is as blue as our Wyoming skies. Penstemons can be hard to positively identify, but I believe the one I have found and collected is Penstemon angustifolius.
Two other Wyoming native Penstemons have graced my garden. I no longer have this garden, so I cannot positively identify them, but my best guess for the tall one is P. strictus.