Fountain Grass
Pennisetum alopecuroides
A graceful perennial ornamental grass forming dense, arching mounds of narrow green foliage adorned with showy, bottle-brush-like flower spikes that resemble fountains.
- Light
- Full sun, requiring at least 6 to 8 hours of direct sunlight daily for optimal flowering and growth.
- Water
- Moderate water needs. Water deeply and regularly when newly planted; established plants tolerate dry periods well but appreciate occasional watering during prolonged dry spells.
- Growth
- Deciduous perennial grass with a clumping, arching habit. Typically reaches a mature height and spread of 2 to 4 feet, growing at a moderate rate.
Care instructions
Grow in full sun with well-draining soil. Water regularly during the first growing season to establish a deep root system, afterwards maintaining moderate moisture. Cut back foliage to ground level in late winter or early spring before new growth emerges.
Growing details
Sunlight
Full sun, requiring at least 6 to 8 hours of direct sunlight daily for optimal flowering and growth.
Watering
Moderate water needs. Water deeply and regularly when newly planted; established plants tolerate dry periods well but appreciate occasional watering during prolonged dry spells.
Soil
Prefers moderately fertile, well-draining loamy or sandy soils with a neutral to slightly acidic pH range of 6.0 to 7.0.
Hardiness zone
USDA Hardiness Zones 5 through 9
Growth habit
Deciduous perennial grass with a clumping, arching habit. Typically reaches a mature height and spread of 2 to 4 feet, growing at a moderate rate.
Bloom season
Blooms from mid-summer through autumn, producing feathery, cylindrical flower spikes in shades of purple, rose, silver, or tan.
Propagation
Propagated primarily by division of established clumps in spring just as new growth begins, or by seeds sown in spring.
Common pests & issues
Generally trouble-free, though occasionally susceptible to rust or fungal leaf spot in overly damp conditions. Ensure good air circulation and avoid overhead watering to prevent issues.
Similar species
Similar to Crimson Fountain Grass (Pennisetum setaceum 'Rubrum'), which features deep burgundy foliage and is typically grown as an annual in cooler climates, whereas Pennisetum alopecuroides is hardier and features green leaves with purplish-tan inflorescences.
User notes
Borde Hill Oct 4 27