Slender Beardtongue, Penstemon gracilis

Slender Beardtongue

Penstemon gracilis

Benefits: Pollinator Benefit Graphic
Sun Shade: Plant Light Requirements Graphic
Bloom Time: Summer
Hardiness Zones: 3, 4, 5, 6, 7, 8
Soil Conditions: Loam
Soil Moisture: Dry, Medium
Color: Purple
Fragrance: No
Height: 2 feet
Spacing: 12-18 inches

Slender Beardtongue, Penstemon gracilis, has very pale violet flowers with 5 lobes, 2 on the top that tilt upward and 3 bottom lobes that turn down and creates the classic Penstemon tubular flower that is a perfect invitation to bumble and other bees and pollinators. In addition to being very attractive to pollinators.

Leaves are narrow, to 3 inches long and 1/3 inch wide near the base of the plant, becoming progressively smaller as they ascend the stem. Leaves are widest at their base, taper to a pointed tip, have tiny teeth around the edges, and no stalk. Attachment is opposite.

Flowers are in groups of 2 or more on stalks that arise from the leaf axils in the upper plant, in a spike-like cluster. Each flower is tubular, pale violet to purple on the outside and about ¾ inch long. There are 5 lobes; the upper 2 lobes are shortest and turn up, the lower 3 extend out and turn down. The inside of the tube is white at the center, with darker purple veins on the inside of the lobes, a fuzzy (bearded) orange “flap” down the center, and 5 yellow-tipped stamens that turn dark brown with maturity.

 Further Information

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