Siberian Graybeard Spodiopogon sibiricus
Other Common Name(s):
- Phonetic Spelling
- spoh-dee-oh-POH-gon sy-BEER-ih-kus
- Description
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Spodiopogon sibiricus, or Frost grass, is an perennial ornamental grass that grows best in moist, well-drained, fertile soil in full sun or light shade. It will not do well in hot, dry sites and the colorful grass, which turns from green to red and burgundy in the fall, will be dull if it does not receive enough light. Frost grass has a bamboo-like quality and the foliage can create bold patterns with purplish or wine tints late in the season. This is a clumping grass and, unlike some ornamental grasses, is not considered invasive.
Frost grass grows best in full sun to light shade with a moist, well-drained soil. It does poorly in hot, dry situations and too much shade produces floppy growth. This is a warm season grass, so its most active growth occurs in summer. It remains upright in winter and can act as winter interest. Because it remains attractive through winter, do not cut it back until early spring before new growth begins. At that time, it can be cut down to the ground.
Insects, Diseases, and Other Plant Problems:
No serious pests or disease. This plant cannot tolerate drought. Frost grass does poorly in hot climates and needs to be sited where it will get daytime relief from a hot sun.
- 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:
- Spodiopogon
- Species:
- sibiricus
- Family:
- Poaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- Siberia to Japan and China. Southeaster temperate Asia.
- Dimensions:
- Height: 3 ft. 0 in. - 5 ft. 0 in.
- Width: 1 ft. 6 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Ornamental Grasses and Sedges
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Clumping
- Erect
- Rounded
- Growth Rate:
- Slow
- Maintenance:
- Low
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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
- High Organic Matter
- Loam (Silt)
- Shallow Rocky
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Wet
- 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, 9a, 9b
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Fruit:
- Fruit Type:
- Caryopsis
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Flowers:
- Flower Color:
- Cream/Tan
- Purple/Lavender
- Red/Burgundy
- Flower Inflorescence:
- Panicle
- Raceme
- Flower Value To Gardener:
- Good Dried
- Long Bloom Season
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Winter
- Flower Size:
- 3-6 inches
- Flower Description:
- Erect panicles tipped by raceme in late summer, lack appreciable color but covered with small hairs. Attractive until October, but can last into February. The flowers are 3 to 4 inches wide, 8 to 12 inches long and rise 14 to 18 inches above the foliage, giving a very airy quality.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Blue
- Green
- Leaf Value To Gardener:
- Showy
- Deciduous Leaf Fall Color:
- Red/Burgundy
- Leaf Shape:
- Lanceolate
- Linear
- Hairs Present:
- Yes
- Leaf Length:
- > 6 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Green leaves often turn red and burgundy in the fall. Leaves are 5 to 13 inches long and up to 3/4 of an inch wide.
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Design Feature:
- Accent
- Border
- Mass Planting
- Resistance To Challenges:
- Black Walnut
- Pollution