Fountain Grass Plant Care

Pennisetum alopecuroides (L.) Spreng.

Cenchrus alopecuroides, previously Pennisetum alopecuroides, commonly known as the Chinese pennisetum, Chinese fountaingrass, dwarf fountain grass, foxtail fountain grass, or swamp foxtail grass, is a species of perennial grass native to Asia and Australia. The culms are erect, and 60–100 cm long.

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Water

Every 7–10 days

Light

Full sun to partial shade

Temp

60–80°F

Humidity

40–70%

What Is the Fountain Grass?

Fountain Grass (Pennisetum alopecuroides) belongs to the Poaceae family within the Pennisetum genus. Fountain Grass is native to Asia and Australia. Fountain Grass is also known as Chinese Fountain Grass, Japanese Fountain Grass.

Fountain Grass displays an upright, clumping grass growth habit, reaching up to 3 inches tall with a spread of approximately 2 inches. Fountain Grass produces showy, feathery flower spikes in various colors.

Leaf size: approximately 12 inches.

How Often Should You Water a Fountain Grass?

Pennisetum alopecuroides requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Fountain Grass Need?

Fountain Grass thrives in full sun to partial shade light conditions. The optimal light range is 2000–5000 lux. Avoid placing Fountain Grass in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Full sun to partial shade

2000–5000 lux

What Temperature and Humidity Does the Fountain Grass Prefer?

Pennisetum alopecuroides grows best at temperatures between 60°F and 80°F. Fountain Grass prefers humidity levels of 40–70%.

Temperature

60–80°F

Humidity

40–70%

What Soil Mix Works Best for a Fountain Grass?

Well-draining sandy loam with added organic matter. Good drainage is essential for Fountain Grass to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Fountain Grass?

Divide and repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Fountain Grass?

Fountain Grass can be propagated through division, seeds. Similar propagation techniques also apply to purple fountain grass plant care, which shares the same genus.

Fertilizing

Every 6 months

During the growing season

Is the Fountain Grass Toxic to Pets and Children?

Non-Toxic

Non-toxic to humans and pets

What Pests and Diseases Affect the Fountain Grass?

Fountain Grass is susceptible to aphids, grasshoppers, cutworms. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

What USDA Hardiness Zone Does the Fountain Grass Need?

Fountain Grass grows outdoors in USDA Zone 5a – 9b. Native to Asia and Australia, Fountain Grass is adapted to warm climates. In cooler regions, grow Fountain Grass as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 5a – 9b

Keep exploring plants

Fountain Grass is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Pennisetum genus — compare its care with other Pennisetum species on PlantoScan.

Fountain Grass tolerates low-light rooms and shaded spots — browse the full list of low-light plants.

More Pennisetum Species

Other Pennisetum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

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