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Photo by Kurt Stueber

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Penstemon serrulatus

Also Known As

Cascade Penstemon

Plant type

perennial

size

H: 1'-2'
W: 1'-2'

planting zones

6a-9b

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Penstemon serrulatus plant details

Penstemon serrulatus is a broadleaf evergreen perennial with green foliage. In spring and summer blue flowers emerge. Attracts butterflies and hummingbirds making it an excellent addition to pollinator gardens. Grows well with sun - mostly shade and even moisture - regular water. Drought tolerant once established. Does well in well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Penstemon serrulatus

Plant type: perennial
Plant family: plantaginaceae
Foliage: evergreen green
Mature size: 1 FT - 2 FT - wide, 1 FT - 2 FT - tall
Flowers: blue blooms in spring and summer
Uses: bare root shipping available

GROWING CONDITIONS for Penstemon serrulatus

USDA Zones: 6a - 9b
Sun exposure: sun - mostly shade
Watering frequency: even moisture - regular
Resistant to: verticillium wilt
Soil needs: well-drained

Nursery contributed plant descriptions

Bumblebees flock to this plant! One of the easiest native penstemons to grow because it can take heavier soils and more shade. Covered in purple-pink flowers it is one of the top showy natives in our area. Semi-evergreen leaves tinted burgundy during the winter add interest even when it isn't blooming.

By: Kiona Native Plants

Unusual and hard to find, this stunning, native perennial penstemon has gorgeous purple-blue flowers in mid- summer standing on 30" stems above rosettes of green, with lance-shaped foliage. Found in open with good drainage in sun to part shade and tolerates some summer water though drought tolerant once established. Lovely herbaceous groundcover, frost hardy to -10F, USDA zone 6.