Penstemon grandiflorus

Also Known As

Large Beard Tongue
Large Beardtongue

Plant type

perennial

size

H: 42"
W: 24"

planting zones

3a-10b

More Options

Penstemon grandiflorus plant details

Penstemon grandiflorus is a broadleaf semi-evergreen perennial with blue and green foliage. In summer lavender flowers emerge. Features glaucous texture. Attracts bees and hummingbirds making it an excellent addition to pollinator gardens. Grows well with sun and regular - low water. Drought tolerant once established. Does well in average and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Penstemon grandiflorus

Plant type: perennial
Plant family: plantaginaceae
Foliage: semi-evergreen blue and green
Mature size: 24 IN wide, 42 IN tall
Flowers: lavender blooms in summer
Uses: border plant, cottage garden, native plant, rock garden, showy

GROWING CONDITIONS for Penstemon grandiflorus

USDA Zones: 3a - 10b
Sun exposure: sun
Watering frequency: regular - low
Resistant to: verticillium wilt
Soil needs: average and well-drained

Nursery contributed plant descriptions

One of the showiest of all North American Penstemons, a mature Beardtongue plant can reach heights of 2', producing a profusion of lavender trumpets that are a favorite nectar source for hummingbirds. This plant is endangered in some states and is not often seen in the wild. Penstemon grandiflorus requires excellent drainage, preferring dry sandy and rocky soils. Will not grow in clay. Hardy to Zones 3 - 7.

By: Prairie Nursery

A new native Penstemon from Texas. It grows upright to 3 ½’ tall with only a 10” spread. In Summer, it bears wands of lavender-blue, 1 1/2-2” flowers. Lovely silvery foliage too. This one likes it on the drier side so provide good drainage. Great for attracting hummingbirds & bumble bees!