Eupatorium hyssopifolium
Common Name(s):
Previously known as:
- Eupatorium hyssopifolium var. calcaratum
- Uncasia hyssopifolia
- Phonetic Spelling
- yoo-puh-TOR-ee-um hiss-sop-ih-FOH-lee-um
- Description
-
Hyssop-leaved thoroughwort is a herbaceous perennial in the aster family ( Asteraceae) native to the eastern and central United States. It is native to dry, sandy or gravelly woods, fields, salt meadows and disturbed areas.
The plant grows in full sun to partial shade in a variety of well-drained soils but does best in dry, sandy soils. It is tolerant of drought, deer, salt and urban conditions. Hyssop-leaved thoroughwort will grow 1-3 feet tall with a 1-2 foot spread with a clumping habit. It spreads by rhizomes and self-seeds. Deadhead after flowering if self-seeding is not desirable. Otherwise, leave the seedhead on through winter for the birds.
Flowering occurs from summer to fall with abundant clusters of small tubular disc flowers and no ray florets. They are magnets for pollinators. The leaves are narrow and grass-like and occur in whorls of 4 along the purplish stems giving it a fine texture.
Use this plant in naturalized areas such as meadows and fields. It can also be used in the pollinator garden and planted in difficult areas of the yard such as dry slopes and dry sandy areas. It pairs well with native grasses and is attractive blowing in the wind among them. Add some tall yellow flowers and you have a lovely naturalized area.
Insects, Diseases, and Other Plant Problems: No significant problems
- See this plant in the following landscape:
- Cultivars / Varieties:
-
- var. hyssopifolium
Narrow leaves - var. laciniatum
Broader leaves
- var. hyssopifolium
- var. hyssopifolium, var. laciniatum
- Tags:
- Cultivars / Varieties:
-
- var. hyssopifolium
Narrow leaves - var. laciniatum
Broader leaves
- var. hyssopifolium
- var. hyssopifolium, var. laciniatum
- Tags:
-
-
Attributes:
- Genus:
- Eupatorium
- Species:
- hyssopifolium
- Family:
- Asteraceae
- Life Cycle:
- Perennial
- Country Or Region Of Origin:
- Eastern and central USA
- Distribution:
- AL , AR , CT , DC , DE , FL , GA , IL , IN , KY , LA , MA , MD , MO , MS , NC , NJ , NY , OH , PA , RI , SC , TN , TX , VA , WV
- Wildlife Value:
- Attracts bees, butterflies and birds. Host plant for Clymene moth.
- Play Value:
- Attracts Pollinators
- Particularly Resistant To (Insects/Diseases/Other Problems):
- drought, deer, rabbits
- Dimensions:
- Height: 1 ft. 0 in. - 3 ft. 0 in.
- Width: 1 ft. 0 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Wildflower
- Habit/Form:
- Clumping
- Erect
- Growth Rate:
- Rapid
- Maintenance:
- Low
- Texture:
- Fine
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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:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
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Fruit:
- Fruit Type:
- Achene
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- Seeds with slender white pappus hairs
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Flowers:
- Flower Color:
- White
- Flower Inflorescence:
- Panicle
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Tubular
- Flower Size:
- < 1 inch
- Flower Description:
- The plant produces abundant white tubular disc flowers and no rays in a dense, flat-topped cluster. that can be 5-10 inches across.
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Leaves:
- Leaf Color:
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Whorled
- Leaf Shape:
- Linear
- Leaf Margin:
- Entire
- Serrate
- Hairs Present:
- No
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Plant leaves are narrow, usually in whorls of three or four. The leaves are sometimes slightly toothed but ususally entire and tend to cluster in the axis. The leaf margin is often rolled inward. Leaves are 3/4 to 2 inches long and sessile (stemless)
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Stem:
- Stem Color:
- Brown/Copper
- Purple/Lavender
- Stem Is Aromatic:
- No
- Stem Form:
- Straight
- Stem Surface:
- Hairy (pubescent)
- Stem Description:
- Dark purple or brown stems
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Landscape:
- Landscape Location:
- Meadow
- Naturalized Area
- Slope/Bank
- Landscape Theme:
- Butterfly Garden
- Drought Tolerant Garden
- Native Garden
- Pollinator Garden
- Design Feature:
- Mass Planting
- Attracts:
- Bees
- Butterflies
- Pollinators
- Songbirds
- Resistance To Challenges:
- Deer
- Drought
- Dry Soil
- Rabbits
- Salt
- Urban Conditions