Images Depict Mature Plants
Porcupine Grass
Miscanthus sinensis 'Strictus'
Porcupine Grass is the Miscanthus I’d use when the landscape needs a bold vertical accent. The yellow banding gives it instant personality, and the upright habit feels more structured than Zebra Grass. It is great as a specimen, a back-of-border grass, or a seasonal screen in full sun. Give it room, avoid overfeeding, and let it stand through winter before cutting it back in early spring.
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An Upright Striped Miscanthus with Bold Architectural Texture
Yellow-Banded Foliage with a Strong Upright Habit
Porcupine Grass is a bold ornamental grass grown for its stiff, upright green foliage marked with horizontal yellow bands. Botanically known as Miscanthus sinensis ‘Strictus’, this warm-season grass gives sunny landscapes a strong architectural look with color and structure that lasts from summer into winter.
The banding gives each blade a distinctive striped effect, while the upright habit makes the plant feel cleaner and more vertical than softer arching Miscanthus varieties. Use Porcupine Grass where you want height, texture, and a standout foliage accent in full sun.
A More Upright Alternative to Zebra Grass
Porcupine Grass is often compared with Zebra Grass because both have horizontal yellow banding. The difference is habit. Zebra Grass tends to arch more broadly, while Porcupine Grass is known for its more erect, spiky, upright foliage.
That makes Porcupine Grass a better choice where you want a stronger vertical line, a more formal accent, or a grass that reads as architectural rather than flowing. It works well near foundations, property lines, sunny borders, modern plantings, and large mixed perennial beds.
Late-Season Plumes and Winter Interest
In mid to late fall, Porcupine Grass can produce crinkly silver plumes that rise above the banded foliage. Depending on the season and climate, the plumes may first show copper, pink, or bronze tones before aging to silvery white.
Flowering may vary in cooler regions or shorter growing seasons, but the foliage alone carries the display for much of the year. Leave the dried stems and plumes standing through winter for movement, structure, and seasonal interest, then cut back before spring growth begins.
A Tall Grass for Screens, Specimens, and Backdrops
Porcupine Grass commonly reaches about 6–8 feet tall in bloom and about 3–5 feet wide, making it useful as a specimen grass, seasonal privacy screen, back-of-border anchor, or repeating vertical accent. It adds height without the woody permanence of shrubs.
Plant it with sun-loving perennials and shrubs that can handle the same bright conditions. Coneflowers, black-eyed Susan, sedum, Russian sage, catmint, salvia, asters, switchgrass, little bluestem, junipers, and compact evergreens all pair well with its bold foliage.
Low Maintenance, Sun Loving, and Deer Resistant
Plant Porcupine Grass in full sun for the strongest growth, brightest banding, and best plume production. It adapts to a wide range of soils once established, including average garden soils, as long as the site drains reasonably well.
Porcupine Grass is generally considered deer-resistant and drought-tolerant once established. Avoid overfertilizing, which can encourage floppy growth. Because Miscanthus sinensis can reseed or be restricted in some regions, check local guidance before planting, especially near natural areas.
| Hardiness Zone: | 5-9 |
|---|---|
| Mature Height: | 6-8 Feet |
| Mature Width: | 3 to 5 Feet |
| Sunlight: | Full sun preferred; tolerates light part shade |
| Soil | Average, medium moisture, well-drained soil; adapts to a range of soils |
| Water Requirements: | Water regularly after planting; average moisture once established; drought tolerant once established |
| Bloom Time / Color | Mid to late fall; crinkly silver plumes, sometimes copper or pink-toned when young |
| Wildlife Value | Dried clumps provide seasonal cover and winter texture |
| Ornamental Features | Yellow horizontal banding, upright habit, late-season plumes, winter structure, bold vertical texture |
| Resistance | Generally deer resistant; low maintenance; drought tolerant once established; tolerant of heat and humidity |
| Landscape Uses | Specimen grass, privacy screen, sunny border, foundation planting, back-of-border texture, mass planting, property line planting, perennial backdrop, winter interest planting, modern landscape |
How to Care for Porcupine Grass
Be sure to read our planting instructions to ensure a healthy and happy Porcupine Grass for years to come!
How should I plant Porcupine Grass?
Plant Porcupine Grass in full sun with average, well-drained soil. Choose a site where the clump has room to mature and where the yellow-banded foliage can be seen, such as a sunny border, foundation bed, back of a perennial garden, property line, low screen, or open landscape bed. Dig a hole about twice as wide as the root ball and just as deep. Set the crown level with the surrounding soil, backfill with native soil, and water thoroughly. Space plants about 4–5 feet apart for individual clumps or closer together if you are creating a fuller seasonal screen.
How often should I water Porcupine Grass after planting?
Water Porcupine Grass deeply after planting, then keep the soil evenly moist while roots establish. During the first growing season, water when the top few inches of soil begin to dry, especially during hot or windy weather. Once established, Porcupine Grass is drought tolerant and usually needs little supplemental water except during extended dry periods. Good watering during the first season helps the clump establish faster and improves long-term performance.
When should I fertilize Porcupine Grass?
Porcupine Grass usually needs little fertilizer in average garden soil. A light spring application of compost or a balanced slow-release fertilizer is enough for most landscapes. Avoid heavy, high-nitrogen fertilizers, which can encourage floppy growth and reduce the upright habit. Full sun, proper spacing, and good drainage are more important than frequent feeding.
When and how should I prune Porcupine Grass?
Cut Porcupine Grass back in late winter or early spring before new growth begins. Use sharp shears, hedge trimmers, or pruners to cut the dried foliage down to about 4–6 inches above the ground. Leave the foliage standing through winter if you want texture, movement, and seasonal structure. Because Porcupine Grass is a warm-season grass, be patient in spring; new growth often appears later than cool-season grasses.
