Plant Care Crimson Fountaingrass

Crimson Fountaingrass

About Crimson Fountaingrass

Annual Fountain Grass is a clumping herbaceous grass that grows 2-4' tall. It blooms in summer and blooms until frost. It is used as a bedding plant, in bed backgrounds, in borders, and in fresh flower arrangements. It can become invasive through seed dispersal.


Cenchrus setaceus

Also known as

African Fountain Grass and Fountain Grass

How to care for Crimson Fountaingrass


How often to water your Crimson Fountaingrass

Water needs for Crimson Fountaingrass
0.5 cups
every 9

Crimson Fountaingrass needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Crimson Fountaingrass

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Crimson Fountaingrass in your home

Light needs and placement for plant Crimson Fountaingrass: 1ft from a window
1ft or less from
a window

Crimson Fountaingrass love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Crimson Fountaingrass does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Crimson Fountaingrass in your home 🏡.


How to fertilize Crimson Fountaingrass

Nutrient, fertilizer, and repotting needs for Crimson Fountaingrass: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Crimson Fountaingrass after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Crimson Fountaingrass

Crimson Fountaingrass

Crimson Fountaingrass

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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