Penstemon davidsonii
Common name(s): beardtongue
Description: evergreen groundcover; a very low-growing penstemon that forms a dense mat of small, glossy leaves. Profuse blooms of blue-violet flowers from late spring into summer. Longer-lived with lean soil and a mulch of gravel beneath.
Height: to 6 in. Spread: to 2 ft.
Position: full sun and well-draining soil
Uses: ornamental, containers, to attract pollinators
Winter Hardiness: to 0 F and below
Drought: adapted to 3 months of summer drought