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!
How To Grow Rocky Mountain Penstemon Seeds
# 1 | Direct sow in late fall, pressing into the surface of the soil since this seed needs light to germinate. For spring planting, mix the seeds with moist sand and store in the refrigerator for 30-60 days before planting.
# 2 | Keep the soil lightly moist until germination.
# 3 | Seedlings should emerge in 10-21 days (after cold stratification).