Splitbeard Bluestem (Andropogon ternarius)

Splitbeard Bluestem

Also known as: Paintbrush Bluestem, Split Bluestem, Broomstraw, Black Mountain Bluestem, Feather Bluestem

Splitbeard Bluestem (Andropogon ternarius) is a wild grass that grows in tufts across the eastern and southern United States. It is found both on forest floors and prairie lands, and also roots well in disturbed habitats. Cows regularly graze on it, and its bunches are used as nesting grounds for bobwhite quail.

Scientific classification

Species

Splitbeard Bluestem (Andropogon ternarius)

Grasses, sedges and allies

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Perennial

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

Late summer, Fall

Harvest Time

61 cm to 91 cm

Plant Height

30 cm to 60 cm

Spread

Green, Blue

Leaf Color

2.5 cm

Flower Size

10 - 35 ℃

Ideal Temperature

Moderate

Growth Rate

Images of Splitbeard Bluestem

Attributes of Splitbeard Bluestem

Growth Rate

In summer, splitbeard Bluestem displays a moderate growth rate which intensifies the vibrant green hue of its dense leaf sheaths. The seasonal warming propels the plant's vertical development, significantly enhancing its overall height. Cooler seasons may decelerate the progress, highlighting its summer-specific growth profusion.

Distribution of Splitbeard Bluestem

Distribution Map

Splitbeard Bluestem is a plant native to regions of North America. It is also found cultivated in various areas beyond its indigenous range. The transition from its native territory to a broader cultivation status has been facilitated but without clear indication of establishment outside its original habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Plains, prairies, meadows, savannas, open woodlands, verges, often in sandy soil

Hemisphere Trend Curve

Northern

Sorthern

Quickly Identify Splitbeard Bluestem

3 feet (91 cm) tall with blue-green foliage transitioning to purplish tones.

Delicate racemes of white flowers, 2 inches (5 cm) long, blooming September-October.

Silvery, fluffy fruiting bodies with caryopsis for wind dispersal, maturing October-November.

Slender, silver-blue leaves, 8-18 inches (20-45 cm) long, hairy texture transitioning to copper-red.

Long, slender stems, purplish to reddish-green, unbranched, up to 3 feet (90 cm) tall.

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Care Guide for Splitbeard Bluestem

Twice per week

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Splitbeard Bluestem thrives in well-draining soil and prefers balanced moisture, requiring watering twice a week. Moderately drought-tolerant, it is ideal for xeriscaping and typically grown outdoors, successfully adapting to variable moisture conditions.

Fertilize: Splitbeard Bluestem requires balanced nutrition fertilizers applied annually in early spring for optimal growth. Adjust amounts as splitbeard Bluestem matures, applying when soil is moist. Seasonal changes may reduce needs, especially in cooler months. Wear gloves and distribute evenly at the plant's base.

Pruning: Splitbeard Bluestem features fluffy seed heads and tall stems. Prune in early spring, cutting old growth to 4-6 inches above ground to foster new shoots and vigor. Removing damaged stems improves air circulation, reduces disease risks, and promotes robust growth for year-round visual appeal.

Propagation: Splitbeard Bluestem is a resilient warm-season grass suited for diverse soils, thriving in open prairies. Propagation through division is effective, requiring gentle handling during dormancy to prevent shock. Plant in well-draining soil and water regularly for vigorous establishment, making splitbeard Bluestem ideal for natural landscapes.

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