Photo by Melody

PlantFiles: Slender Gerardia, Slenderleaf False Foxglove
Agalinis tenuifolia

Family: Scrophulariaceae (skrof-yoo-larr-ee-AY-see-ee) (Info)
Genus: Agalinis (ag-uh-LIN-us) (Info)
Species: tenuifolia (ten-yoo-ih-FOH-lee-uh) (Info)

Synonym:Gerardia tenuifolia

3 members have or want this plant for trade.

Parasites and Hemiparasites

12-18 in. (30-45 cm)

9-12 in. (22-30 cm)

Unknown - Tell us

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:

Bloom Time:
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By frostweed
Thumbnail #1 of Agalinis tenuifolia by frostweed

By frostweed
Thumbnail #2 of Agalinis tenuifolia by frostweed

By Cville_Gardener
Thumbnail #3 of Agalinis tenuifolia by Cville_Gardener


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive frostweed On Nov 24, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Slender Gerardia, Slenderleaf False Foxglove, Agalinis tenuifolia is native to Texas and other States.


This plant has been said to grow in the following regions:

Wetumpka, Alabama
Wauseon, Ohio
Wilkes Barre, Pennsylvania
Summerville, South Carolina
Arlington, Texas

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