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Foxglove Beardtongue

Penstemon digitalis

Also listed as Chelone digitalis, Penstemon alluviorum

Also known as Tall White Beardtongue

herbaceous☀️ full sun💧 low water❄ Hardy: Zone 3a – Zone 8b

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A native perennial with tall spikes of white or pale pink tubular flowers attractive to hummingbirds and pollinators. It thrives in dry to moderate conditions and is an excellent choice for low-maintenance gardens and native plantings.

Why grow it

Penstemon digitalis offers a native alternative to hybrid penstemons, with reliable performance across a wider range of soil conditions and less need for supplemental water once established. Its tall flower spikes and extended bloom period provide sustained pollinator interest through mid to late summer, filling a seasonal niche that many garden penstemons do not. The species tends to self-seed moderately, which can be useful for naturalized plantings or low-input gardens.

Watch out for

Plants may become leggy or decline in overly rich, amended soils or in consistently moist conditions, particularly in humid climates. Crowding and poor air circulation increase susceptibility to fungal issues, so spacing and site selection matter more than typical supplemental pest management.

Overview

Form
Upright
Growth Rate
moderate
Size
2–4′ tall × 1–2′ wide
Dormancy
deciduous
Family
Plantaginaceae
pollinator nectarywildlife benefit

Native to the United States

Native Range

Eastern North America

Native to: Alabama, Arkansas, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Missouri, Mississippi, Nebraska, Ohio, Oklahoma, Tennessee, Texas, Wisconsin

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

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Companion Planting

Plants well with