Penstemon incertus - Mojave Penstemon, Western Desert Penstemon (Plant) Activity Books It has attractive grey-green foliage

It has attractive grey-green foliage

In their introduction

A lovely seasonal groundcover for moist areas

Heavy blooming desert sage

Penstemon incertus - Mojave Penstemon, Western Desert Penstemon (Plant) Activity Books It has attractive grey-green foliageShowy flower spikes. Good at high elevations. Takes summer heat. Best with some summer water, but allow to dry out fully between waterings. Plant Characteristics Family Name Plantaginaceae Species Name Penstemon incertus Common Name Mojave Penstemon, Western Desert Penstemon Plant Type Perennial Sun Exposure Coast Sun, Inland Sun, Water Requirement Low Soil Type Sand, fast draining Flower Color Purple, Violet, Lavender Flowering Months May, June