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Tall False Foxglove
Agalinis aspera

a.k.a. Rough False Foxglove

This annual plant is 1–2½' tall, branching occasionally. It has a tendency to sprawl in the absence of supportive vegetation. The dark green stems are grooved and hairless. The opposite leaves are 1-3 inches long, dark green, and linear. They have smooth margins and a prominent midvein. The leaves are usually hairless, although new growth may be slightly pubescent. Secondary leaves may develop from the axils of the primary leaves along the central stem, but they are smaller in size than the latter. Some of the upper stems develop racemes of flowers. These flowers are up to 1 inch long and across, and vary in color from lavender to purple.

USDA symbol: AGAS2

General Information

Plant TypeForb
Height2 feet
Light ExposureSun
Soil MoistureMedium
Bloom ColorPink
Tall False Foxglove (Tall False Foxglove<div><em class="small">Agalinis aspera</em></div>)
Photo credit: Prairie Moon Nursery (Click to enlarge)


Flooding / Inundation ToleranceHigh
General Resilience4
Salt ToleranceUnknown
Stress ToleranceGeneral Disturbance

Pollinator Value: High

Bloom MonthsJuly to September
Pollinator BenefitInsect Pollinated, Provides Nectar

Project Planning

Project TypeRain Garden
Coefficient of Conservatism8
Herbivore SensitivityMedium
Rate of SpreadSlow
Soil StabilizationShallow
Vegetative ReproductionAbsent


CountyBecker, Big Stone, Brown, Chippewa, Clay, Dakota, Douglas, Fillmore, Goodhue, Hennepin, Houston, Kandiyohi, Kittson, Lac qui Parle, Lincoln, Murray, Nobles, Otter Tail, Pennington, Pipestone, Polk, Pope, Renville, Stevens, Swift, Traverse, Wabasha, Washington, Winona