Penstemon hirsutus
An evergreen subshrub with dark green leaves large tubular-shaped, pretty pale violet flowers with a white throat in summer.
Penstemon hirsutus var. pygmaeus
An evergreen, mat-forming subshrub with purple-tinted leaves and tubular-shaped, pretty pale violet flowers with a white throat in summer.
Penstemon isophyllus
An evergreen subshrub with purple-tinged mid-green leaves and large tubular-shaped, pretty red to deep pink flowers suffused white in summer.
Penstemon laetus var. roezlii
A low, shrubby alpine with pretty rosy red flowers in late spring and early summer.
Penstemon lyallii
A bushy alpine with large clusters of pretty lavender to purple-violet flowers in late spring and early summer.
Penstemon newberryi
An evergreen mat-forming alpine with pretty rosy purple flowers in late spring and early summer.
Penstemon ovatus
A perennial with light green leaves and pretty blue to pinkish purple flowers in late spring.
Penstemon pinifolius
An evergreen subshrub with narrow, needle-like leaves. Narrow tubular-shaped, pretty bright scarlet flowers in summer.
Penstemon pinifolius ‘Mersea Yellow’
An evergreen subshrub with narrow, needle-like leaves. Narrow tubular-shaped, pretty bright deep yellow flowers in summer.
Penstemon procerus ssp. tolmiei
A compact perennial with narrow leaves and pretty lilac-blue to purple-blue flowers in summer.
Penstemon richardsonii
An evergreen subshrub with divided leaves and pretty pink, rosy lilac, or bright lavender flowers in summer.
Penstemon rupicola
An evergreen subshrub with pretty, deep reddish pink flowers in late spring or early summer.