Penstemon hartwegii
A woody-based perennial with glossy leaves large tubular-shaped, pretty scarlet-red or dark purple-red flowers.
Penstemon hartwegii albus
A woody-based perennial with glossy leaves large tubular-shaped, pretty white flowers.
Penstemon heterophyllus
An evergreen subshrub with bluish green leaves large tubular-shaped, pretty pinkish blue flowers in summer.
Penstemon heterophyllus ‘Blue Gem’
A dwarf evergreen subshrub with bluish green leaves large tubular-shaped, pretty intense blue flowers in summer.
Penstemon heterophyllus ‘Blue Springs’
An evergreen subshrub with bluish green leaves large tubular-shaped, pretty intense blue flowers in summer.
Penstemon heterophyllus ‘Heavenly Blue’
An evergreen subshrub with bluish green leaves large tubular-shaped, pretty blue flowers in summer.
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 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.