Anatherum glomeratum
Common Name(s):
Previously known as:
- Andropogon glomeratus
- Andropogon glomeratus var. glomeratus
- Phonetic Spelling
- ah-NAH-the-rum glo-me-RAH-tum
- Description
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Bushy bluestem is a tufting, sturdy, warm-season grass in the Poaceae family native to much of the eastern United States and the south-central and western United States. It can be found growing in swamps, wet savannas, pine flatwoods, bogs, fens, depression ponds, interdune swales, ponds and wet disturbed sites. The genus name comes from the Greek, referring to the hairs on the spikelets of some species in the genus. Specific epithet means clustered in reference to its bushy and broom-like inflorescences.
This grass may grow 2 to 6 feet tall and spread 2 to 3 feet wide. It prefers full sun in moist to wet sites and is not drought-tolerant. It readily reseeds itself and can also be divided as needed to propagate. Tolerates occassional flooding and salt.
The showy clusters of bushy, beard-like, silvery pink flowers appear in the fall and become a coppery orange after a frost. The foliage is blue-green with red tints and turns copper to orange after a frost that lasts into winter.
Use bushy bluestem along bogs, ponds or other wet areas, allowing room for them to spread. They are host plants for some moths and butterflies and provide seed for birds and small mammals.
Fire Risk: This plant has an extreme flammability rating and should not be planted within the defensible space of your home. Select plants with a low flammability rating for the sites nearest your home.
Insects, Diseases, and Other Plant Problems: No significant problems.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Anatherum
- Species:
- glomeratum
- Family:
- Poaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- Eastern coastal USA west to TX and CA
- Fire Risk Rating:
- extreme flammability
- Wildlife Value:
- Members of the genus Anatherum support Common Wood-Nymph (Cercyonis pegala) larvae which have one brood from late May to October. Adult Common Wood-Nymph butterflies feed on rotting fruit and flower nectar. This plant also supports various Skipper larvae. Provides excellent cover year-round. Seeds are eaten by songbirds and small mammals.
- Play Value:
- Wildlife Food Source
- Particularly Resistant To (Insects/Diseases/Other Problems):
- deer, moist and damp soil
- Dimensions:
- Height: 3 ft. 0 in. - 6 ft. 0 in.
- Width: 2 ft. 0 in. - 3 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Native Plant
- Ornamental Grasses and Sedges
- Perennial
- Habit/Form:
- Clumping
- Erect
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- High Organic Matter
- Sand
- Soil pH:
- Acid (<6.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Moist
- Occasional Flooding
- Occasionally Wet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 7a, 7b, 8a, 8b, 9a, 9b
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Fruit:
- Fruit Color:
- Brown/Copper
- Orange
- Fruit Value To Gardener:
- Showy
- Display/Harvest Time:
- Fall
- Fruit Description:
- Paired spiklets form a feathery, club-shaped inflorescence, commonly called a flower/seed panicle. Fruit displays from October to November.
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Flowers:
- Flower Color:
- Gray/Silver
- Pink
- White
- Flower Inflorescence:
- Panicle
- Flower Value To Gardener:
- Good Cut
- Good Dried
- Flower Bloom Time:
- Fall
- Winter
- Flower Size:
- < 1 inch
- Flower Description:
- This plant has interesting silvery-pink beard-like flowers that bloom from September to October. The inflorescence has densely clustered, bushy bracts at top of stems. The inflorescence is good in cut or dried arrangements.
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Leaves:
- Leaf Color:
- Green
- Red/Burgundy
- Leaf Value To Gardener:
- Long-lasting
- Showy
- Deciduous Leaf Fall Color:
- Gold/Yellow
- Orange
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- > 6 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- This plant has 3/8 in. wide green leaves in summer which turns copper-orange in fall and retains color well into winter. Foliage has a reddish tint.
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Stem:
- Stem Color:
- Brown/Copper
- Green
- Orange
- Stem Is Aromatic:
- No
- Stem Description:
- Fruit stalks start silvery green and transition to an orangy brown.
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Landscape:
- Landscape Location:
- Meadow
- Naturalized Area
- Riparian
- Landscape Theme:
- Butterfly Garden
- Native Garden
- Water Garden
- Winter Garden
- Design Feature:
- Small groups
- Attracts:
- Butterflies
- Pollinators
- Small Mammals
- Songbirds
- Resistance To Challenges:
- Black Walnut
- Deer
- Pollution
- Salt
- Wet Soil
