Penstemon cobaea

Also Known As

Showy Beardtongue

Plant type

perennial

size

H: 24"-30"
W: 12"-15"

planting zones

4a-10b

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Penstemon cobaea plant details

Penstemon cobaea is a broadleaf evergreen perennial with green foliage. In spring and summer purple flowers emerge. Features glossy texture. Attracts bees and hummingbirds making it an excellent addition to pollinator gardens. Grows well with sun and regular - low water. Does well in rich and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Penstemon cobaea

Plant type: perennial
Plant family: plantaginaceae
Foliage: evergreen green
Mature size: 12 IN - 15 IN - wide, 24 IN - 30 IN - tall
Flowers: purple blooms in spring and summer
Uses: cottage garden, floriferous, native plant

GROWING CONDITIONS for Penstemon cobaea

USDA Zones: 4a - 10b
Sun exposure: sun
Watering frequency: regular - low
Resistant to: verticillium wilt
Soil needs: rich and well-drained

Nursery contributed plant descriptions

With the largest flowers of the genus Penstemon, this mid-western species is native to our grasslands, easy to grow, very long blooming and, unlike many Penstemons, is long lived. The 2” long, flaring blooms are so large, this Penstemon is often mistaken for a foxglove. The color is variable, from flashy rich purple to rosy-violet. Bloom time is April thru June, the flowers held in tight clusters atop 24” to 30” stems. The evergreen foliage is an attractive, glossy, rich green. Though it prefers loamy, well drained soil, it does tolerate drought conditions. Attracts bumblebees & hummingbirds!