How Tall Does Purple Fountain Grass Get?

Purple fountain grass typically grows to be about 3 feet tall.

Purple fountain grass is a beautiful ornamental grass that can add color and interest to your landscape. It is relatively easy to care for and can reach heights of up to 4 feet tall. Purple fountain grass does best in full sun and well-drained soil, so be sure to plant it in an area that gets plenty of sunlight.

Once established, this grass is drought tolerant and does not require much water. If you live in an area with hot summers, purple fountain grass can help keep your yard cool by providing shade.


Purple Fountain Grass Height | How Tall Does Purple Fountain Grass Grow

How Quickly Does Purple Fountain Grass Grow?

According to the website Gardening Know How, purple fountain grass (Pennisetum setaceum rubrum) is a fast-growing ornamental grass that can reach up to 3 feet in height. The site recommends planting the grass in full sun and well-drained soil for best results. Purple fountain grass is a perennial plant, meaning it will come back year after year.

However, it is not frost-tolerant and should be planted in an area where it will receive protection from cold weather.

Will Purple Fountain Grass Come Back Each Year?

Purple fountain grass (Pennisetum setaceum) is an ornamental grass that is popular in landscaping. It is a tender perennial, which means it will die back in winter and regrow in spring. In warm climates, it may remain evergreen.

Purple fountain grass is not cold hardy and will not survive in areas where the temperatures dip below freezing for extended periods of time.

Does Purple Fountain Grass Need Full Sun?

No, purple fountain grass does not need full sun. It is a perennial grass that grows best in partial shade to full sun. It is drought tolerant and can tolerate some heat, but it will not do well in extreme conditions.

How Far Apart Should Purple Fountain Grass Be Planted?

If you’re looking to add a splash of purple to your garden, then planting purple fountain grass is a great option. But how far apart should these plants be spaced? Generally, it’s recommended that you plant purple fountain grass about 18-24 inches apart.

This will allow the plants enough room to spread out and fill in nicely over time.

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Of course, your particular garden space may dictate how far apart you need to plant these grasses. If you have a smaller area, then you can get away with spacing them closer together.

Just be sure not to overcrowd the area or the plants will compete for resources and likely won’t thrive. When in doubt, it’s always best to err on the side of too much space rather than too little. So if you’re unsure, go ahead and give those purple fountain grasses plenty of room to grow!

How Tall Does Purple Fountain Grass Get?


Will Purple Fountain Grass Survive Winter

As the temperatures start to drop, many gardeners are wondering if their purple fountain grass will survive winter. This grass is a popular choice for adding color and interest to gardens, but it is a tropical plant that isn’t tolerant of cold weather. If you live in an area with mild winters, your purple fountain grass may be able to survive outdoors with some protection.

However, if you’re expecting freezing temperatures or snow, it’s best to bring your plant indoors for the winter. To give your purple fountain grass the best chance of surviving winter, start by preparing the plant in fall. Cut back any dead or dying leaves and stems, and fertilize the plant to help it recover from summer heat and stress.

If you plan on keeping your purple fountain grass indoors over winter, acclimate it slowly by moving it into a sheltered spot outside for a few hours each day. Once frost is expected in your area, bring the plant inside and place it in a sunny spot near a window. Keep the soil moist but not soggy, and mist the leaves occasionally to raise humidity levels around the plant.

With proper care, your purple fountain grass should make it through winter without too much trouble. Bring it back outside when temperatures warm up in spring, and enjoy its beauty all summer long!

Purple Fountain Grass in Containers

If you’re looking for a bit of color in your container garden, purple fountain grass (Pennisetum setaceum) is a good option. This ornamental grass has showy, purplish-red flowers that appear in late summer or early fall. The plant grows best in full sun and well-drained soil.

Purple fountain grass is a perennial, so it will come back year after year. However, it is not winter hardy, so you’ll need to bring it indoors or pot it up for the winter if you live in an area with cold winters.

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This grass can get quite tall (up to 4 feet), so make sure you choose a large enough pot.

It also has fairly aggressive roots, so make sure the pot has drainage holes and use a light, well-draining potting mix. Water regularly during the growing season, but allow the soil to dry out between waterings. Cut the plants back to about 6 inches in late winter or early spring before new growth begins.

Is Purple Fountain Grass Invasive

Purple fountain grass (Pennisetum setaceum) is a beautiful ornamental grass that adds color and interest to the landscape. Unfortunately, it is also an invasive plant. Purple fountain grass is native to Africa and was introduced to the United States in the early 1900s as an ornamental plant.

It has since escape from gardens and landscapes, and has become naturalized in many parts of the country. Purple fountain grass grows rapidly and produces a large number of seeds. The seeds are easily dispersed by wind and water, and can establish new populations of purple fountain grass in areas where it does not currently exist.

This plant can quickly take over an area, crowding out native plants and altering habitat structure. Purple fountain grass invades open spaces such as fields, meadows, roadsides, and forest edges. It can also invade more natural areas such as prairies, savannas, wetlands, and woodlands.

If you have purple fountain grass on your property, you should consider removing it to help prevent its spread into natural areas. There are several ways to remove this plant, including physical removal (pulling it up), herbicides (killing it with chemicals), or burning (using fire). Please consult with your local extension office for more specific information on how to best remove purple fountain grass from your property.


Purple fountain grass is a popular ornamental grass that grows in clumps and can reach up to 4 feet tall. The leaves are green with purple stripes and the flowers are small, purplish-pink spikes that bloom in the summer. Purple fountain grass is drought tolerant and does well in full sun or partial shade.

It is a relatively low maintenance plant and deer resistant.