Fountain Grass
Pennisetumalopecuroides 'National Arboretum'

Category
Ornamental Grasses and Bamboo
Perennials

Water Requirements
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Grown for foliage
Herbaceous

Foliage Color

Height
24-36 in. (60-90 cm)

Spacing
18-24 in. (45-60 cm)

Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

Danger

Bloom Color
Dark Purple/Black

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Late Summer/Early Fall
Mid Fall

Other details
May be a noxious weed or invasive

Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information

Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed