Ohio Horsemint Blephilia ciliata
Other Common Name(s):
- Phonetic Spelling
- bleh-FIL-ee-uh sil-ee-ATE-uh
- Description
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Ohio Horsemint is a short-lived, but fast growing, herbaceous perennial wildflower native to the central and eastern parts of the United States, although not commonly found in North Carolina. It is typically found growing wild in thin soils over limestone in dry open woods, prairies, savannas, limestone bluffs, glades, barrens, clearings, fields, steep slopes, disturbed sites and roadsides. The leaves of this wildflower in the mint family can be used in drinks and sauces and the fragrant blue-purple flowers are in blossom from late spring to mid-summer. The genus name comes from the Greek blepharis meaning an eyelash, which refers to the bracts being fringed by hairs.
Plant it in the full sun to partial shade in well drained loamy or silty, moist to dry soil with a PH of 6 to 8. The soil can contain significant amounts of loam, clay, or gravel. The plant has some drought tolerance, but does not tolerate waterlogged soils or flooding, salt, or soil compaction. The plant forms clumps with limited spread and the roots are fibrous and shallow. The stems give off a mild fragrance when crushed.
This plant was selected as the 2022 NC Wildflower of the Year, a program managed by the North Carolina Botanical Garden with some financial support from the Garden Club of North Carolina.
Diseases, Insect Pests, and Other Plant Problems:
Susceptible to powdery mildew.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Cultivars / Varieties:
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Attributes:
- Genus:
- Blephilia
- Species:
- ciliata
- Family:
- Lamiaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Country Or Region Of Origin:
- Central and eastern North America.
- Distribution:
- Canada, south to Georgia and west to Oklahoma.
- Wildlife Value:
- The flowers attract long-tongued and short-tongued bees, bee flies, Syrphid flies, butterflies, and skippers.
- Edibility:
- Minty leaves can be eaten raw and used in teas. The leaves can be used to prepare sauces and drinks.
- Dimensions:
- Height: 1 ft. 0 in. - 2 ft. 6 in.
- Width: 0 ft. 8 in. - 1 ft. 6 in.
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Wildflower
- Habit/Form:
- Clumping
- Erect
- Growth Rate:
- Rapid
- Maintenance:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Dry
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
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Fruit:
- Fruit Description:
- The fruit is dry but does not split open when ripe.
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Flowers:
- Flower Color:
- Blue
- Purple/Lavender
- White
- Flower Inflorescence:
- Spike
- Flower Value To Gardener:
- Fragrant
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Lipped
- Saucer
- Flower Petals:
- Bracts
- Colored Sepals
- Flower Size:
- < 1 inch
- Flower Description:
- The upper half of the central stem is perforated by whorled clusters of flowers. Each cluster of flowers is about 2 to 3 inches across with the flowers arranged in circular rows. The flowers are white, light pink, or lavender, and individually slightly less than ½ inch long. There are two prominent lips with small purple spots on the lower lip. The blooming period lasts about a month.
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Leaves:
- Leaf Color:
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Opposite
- Leaf Shape:
- Lanceolate
- Oblong
- Leaf Margin:
- Entire
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Width:
- 1-3 inches
- Leaf Description:
- The leaves are up to 3½ inches long and 1½ inches across, broadly oblong to lanceolate in shape, and have smooth, slightly ciliate margins. The lower leaves have short stout petioles, while the upper leaves are sessile. They have deep pinnate venation and are covered with a white pubescence.
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Stem:
- Stem Is Aromatic:
- No
- Stem Cross Section:
- Angular
- Stem Form:
- Straight
- Stem Surface:
- Hairy (pubescent)
- Stem Description:
- Unbranched. Side stems develop from upper leaf axils if the central stem is damaged. The stout central stem is 4-angled and covered with short white hairs.
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Landscape:
- Landscape Location:
- Meadow
- Woodland
- Landscape Theme:
- Drought Tolerant Garden
- Native Garden
- Pollinator Garden
- Design Feature:
- Mass Planting
- Attracts:
- Bees
- Pollinators
- Resistance To Challenges:
- Deer
- Drought
- Dry Soil