The quick and convenient step by step guide to growing your very own Rocky Mountain Penstemon! These tall spikes of vibrant indigo blossoms are probably the most popular of the Penstemon family. Native to the Rockies, this variety flourishes in a wide range of garden conditions across most of the US. It is showy and popular with the insects in your garden too! Check Out The Sacred Plant Co Seed Selection How To Grow Rocky Mountain Penstemon Seeds # 1 | Direct sow in late fal