How to Grow Fountain Grass
Wikimedia Commons
Fountain Grass
Pennisetum alopecuroides
grassFountain grass is a graceful ornamental grass featuring arching, fine-textured foliage that forms a mounded shape with spectacular feathery plumes in late summer and fall. It creates a fountain-like silhouette and adds movement and texture to garden landscapes. This perennial is prized for its autumn color display and winter interest.
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Example Fountain Grass timeline · Pittsburgh, PA (Zone 6b)
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Plant Fountain Grass
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Fountain Grass
Around Oct 14≈ 180 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10, with best performance in zones 6-9
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Vegetative Growth
3-4 monthsFoliage expands rapidly with long, arching leaves growing outward and upward, forming the characteristic fountain shape.
Water deeply once or twice weekly. Apply balanced or slow-release fertilizer in spring. Remove any dead foliage. Stake if needed in windy locations.
Pre-flowering
3-4 weeksTall flower stems emerge above the foliage canopy in mid to late summer, reaching their full height.
Maintain consistent moisture. Stop fertilizing to avoid soft, weak growth. Support stems if needed in exposed areas.
Flowering & Plume Development
8-12 weeksFeathery, bottlebrush-like panicles (flower spikes) emerge in soft pink, copper, or burgundy tones and mature to silvery-white by fall.
Enjoy the blooms without deadheading. Continue moderate watering. Plumes peak in September-October and persist into winter for landscape interest.
Winter Dormancy
3-4 monthsFoliage fades to golden-tan and burgundy tones; plumes persist on dried stems providing winter structure and texture.
Leave standing for winter interest and wildlife habitat. Do not cut back until late winter (February-March) before new growth emerges. Cut to 3-4 inches above ground.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Usually not problematic; remove affected foliage if severe. Encourage natural predators.
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Rare; maintain plant vigor with proper irrigation and avoid overfertilizing.
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Spray with water to dislodge; use neem oil if infestation is severe. Improve humidity.
Uses
Cut & Dried Floral Arrangements
HouseholdThe feathery plumes make excellent additions to fresh or dried flower arrangements, adding height, movement, and textural interest. Plumes persist for months when dried properly. [source]
Landscape Design & Focal Points
HouseholdFountain grass serves as an attractive focal point or accent in gardens, borders, and mixed plantings. Its arching form and seasonal color changes provide year-round visual interest. [source]
Wildlife Habitat & Erosion Control
WildlifeStanding dried stems provide shelter and nesting material for birds and beneficial insects. The deep root system helps stabilize soil and prevent erosion on slopes. [source]
Garden Structure & Winter Interest
CraftThe persistent plumes and dried stems create striking architectural elements in the winter garden, adding structure and movement even after frost. [source]
Seed Production for Wildlife
CulinaryWhile not edible for humans, fountain grass seeds provide food for songbirds and wildlife throughout fall and winter when other food sources are scarce. [source]
Harvest Tips
Fountain grass is ornamental rather than edible. Plumes can be cut in fall after they've developed full color (September-October) for fresh or dried floral arrangements. Cut stems at the base and hang upside down in a cool, dry location to dry. Leave standing in the garden for winter interest, then cut back hard (to 3-4 inches) in late winter before spring growth begins.
Fun Facts
- 🌱 Fountain grass gets its name from its distinctive fountain-like silhouette, with gracefully arching foliage that creates a cascading water effect in the landscape.
- 🌱 The plumes of fountain grass are actually dense flower clusters called panicles; each plume can contain hundreds of tiny flowers, which is why they remain visually prominent for so long.
- 🌱 Fountain grass is native to Asia and Africa, thriving in warm climates, and has become one of the most popular ornamental grasses in North American gardens due to its reliable performance and stunning autumn display.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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