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How To Grow and Care for Purple Love Grass?

Eragrostis spectabilis

Purple love grass is like a ray of sunshine in your garden, with its slender stems reaching the sky.

But it’s the stunning purple hues that truly steal the show, as each swaying movement radiates a sense of tranquility and natural beauty that instantly captivates your heart.

Growing and caring for purple love grass is a joyful adventure within reach because, with just the proper requirements, this vibrant grass can transform your outdoor space into a haven of color and charm.

So why not bring a touch of nature’s magic into your garden and let’s uncover the secrets of its growth and care that we’ll provide in this guide?

What Is Purple Love Grass?

Eragrostis spectabilis
Source: Wikimedia

Purple love grass, scientifically known as Eragrostis spectabilis, is warm-season perennial ornamental grass native to the prairies and open woodlands of North America, particularly in the central and eastern regions of the United States.

The grass forms dense clumps of slender, upright stems that can reach a height of 1 to 2 feet (30-60 cm).

In summer and early fall, the stems are adorned with airy panicles of purple to reddish-purple flowers, creating a breathtaking display of color.

Gardeners and landscapers appreciate purple love grass for its versatility and aesthetic appeal, as it serves as an excellent border plant, making it a popular choice for landscaping projects, adding visual interest and attracting butterflies and other pollinators to the garden.

Aside from its visual appeal, the grass has a deep root system that aids in soil erosion control, making it an ideal choice for stabilizing slopes or areas prone to erosion.

Additionally, the grass is relatively low-maintenance, requiring minimal watering and pruning once established.

Growing and Caring for  Purple Love Grass

Purple love grass is relatively low-maintenance, requiring minimal watering and pruning once established.

So, here are some practical tips you need to cultivate and maintain this vibrant beauty successfully.

Tip #1: Soil

Before planting your purple love grass, it would help to loosen it up with a garden fork or a tiller and remove any weeds or rocks that might be in it.

You want a nice, loose bed for your grass to settle into.

Ensure the soil is well-draining and dry.

Tip #2: Watering

Purple love grass is relatively drought-tolerant once established, but it still needs some water to get its roots settled.

So, water it deeply but infrequently.

Water it until the top inch of the soil feels dry, then let it dry out before watering again.

Tip #3: Light

This grass loves the sun and grows best when exposed to full sun daily.

So ensure it gets at least 6 to 8 hours of direct sunlight daily.

Tip #4: Mulching

To help conserve moisture and keep weeds at bay, add a layer of organic mulch around your purple love grass.

This will also give your garden a tidy look and regulate the soil temperature.

Ensure you keep the mulch away from the base of the grass to prevent rotting.

Tip #5: Fertilizing

Purple love grass doesn’t require much fertilization, but if you want to give it a boost, you can apply a balanced slow-release fertilizer in early spring.

Remember to follow the instructions on the fertilizer package.

When Does Purple Love Grass Grow?

Eragrostis spectabilis
Source: Wikimedia

Purple love grass is a warm-season grass that primarily grows in spring and summer.

Its growth cycle corresponds to the warmer periods of the year, allowing it to thrive in optimal conditions.

It starts its active growth in late spring when temperatures and daylight hours increase.

As the weather warms up, the grass develops new shoots and establishes its roots in the soil. 

During the summer, purple love grass reaches peak growth and displays its most vibrant colors.

The slender stems grow taller, and the airy panicles of purple to reddish-purple flowers emerge.

In autumn, its growth starts to slow down. The grass conserves energy to produce seeds and prepare for the dormant period.

In areas with mild winters, purple love grass may retain some foliage and maintain a subtle presence throughout the colder months.

However, in regions with harsh winters, the grass enters a dormant state, where the above-ground portions of the plant may wither and turn brown.

Growth and Geographical Location

You should note that the specific growth pattern and time of purple love grass can vary depending on the climate in your geographical location and local growing conditions.

Possible Problems of Purple Love Grass

Here are some possible problems you may face with growing purple love grass.

Root Rot

Overwatering your purple love grass can cause its root to rot, especially when the soil is not well-draining.

To prevent this, water deeply but not regularly, allowing the soil to dry out between waterings.

Drought Stress

This grass is fairly drought-tolerant, but severe and prolonged drought conditions can stress the plant.

The grass will begin turning brown and dry. You can give it some water to help it recover.


Aphids, grasshoppers, or spider mites can occasionally infest your purple love grass, even though it is pest-resistant.

You can use horticultural oils, neem oil, insecticidal soaps, or an alcohol spray to control them once you notice them.


Purple love grass can be susceptible to fungal diseases like rust or leaf spots if the conditions are overly moist.

To avoid this, ensure good air circulation around the plants and avoid overhead watering.


Growing purple love grass will invite you to ponder the beauty of the ordinary.

It will serve as a reminder that sometimes the most extraordinary wonders are concealed within the simplest forms.

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