Non-native Plants

Argentine Fingergrass

Eustachys retusa

USDA symbol: EURE5

perennial grass

Lower 48 states: non-native, naturalized

Meet Argentine fingergrass (Eustachys retusa), a perennial grass that’s been making its way into American gardens and wild spaces. Also known by its Spanish name pata-de-gallo (which charmingly translates to rooster’s foot), this South American native brings a unique texture to landscapes in warmer climates. Argentine fingergrass is a clump-forming ...

Argentine Fingergrass: A South American Grass for Warm Climate Gardens

Meet Argentine fingergrass (Eustachys retusa), a perennial grass that’s been making its way into American gardens and wild spaces. Also known by its Spanish name pata-de-gallo (which charmingly translates to rooster’s foot), this South American native brings a unique texture to landscapes in warmer climates.

What is Argentine Fingergrass?

Argentine fingergrass is a clump-forming perennial grass that creates dense tufts of narrow, blue-green to gray-green leaves. Its most distinctive feature is its finger-like seed spikes that extend upward like outstretched hands, giving the plant an architectural quality that catches the eye in any landscape setting.

Originally from Argentina and surrounding South American regions, this grass has established itself in several U.S. states including Florida, Georgia, New Jersey, New York, South Carolina, and Texas. As a non-native species that reproduces spontaneously in the wild, it’s found its way into various ecosystems across these areas.

  • Species observed
  • No observations

Garden Appeal and Landscape Use

If you’re drawn to grasses that offer movement and texture, Argentine fingergrass delivers both in spades. Its upright growth habit and distinctive seed heads make it a conversation starter in contemporary garden designs. The plant works well in:

  • Xeriscaping and drought-tolerant gardens
  • Contemporary landscape designs
  • Naturalized meadow-style plantings
  • Areas where you want textural interest without high maintenance

Growing Conditions and Care

One of Argentine fingergrass’s selling points is its easy-going nature. This grass thrives in USDA hardiness zones 8-11, making it suitable for gardeners in warm climates. Here’s what it needs to flourish:

  • Sunlight: Full sun for best growth and flowering
  • Soil: Well-draining soil; tolerates poor soils well
  • Water: Drought-tolerant once established, though regular watering helps establishment
  • Maintenance: Low maintenance; occasional division can rejuvenate older clumps

The grass may self-seed in favorable conditions, so keep an eye on it if you prefer a more controlled garden setting.

Wildlife and Ecological Considerations

Like many grasses, Argentine fingergrass produces seeds that can provide food for birds and small wildlife. However, as a wind-pollinated plant, it doesn’t offer significant benefits to pollinators like bees and butterflies.

Should You Plant Argentine Fingergrass?

Since this is a non-native species that has established itself in wild areas, consider your local ecosystem before planting. While it’s not currently listed as invasive, non-native plants can sometimes outcompete local species.

If you’re interested in similar textures and forms, consider exploring native grass alternatives in your region first. Many areas have beautiful native bunch grasses that offer similar aesthetic appeal while supporting local ecosystems more effectively.

That said, if you do choose to grow Argentine fingergrass, its low-maintenance nature and unique appearance can certainly add interest to appropriate garden settings. Just be mindful of its potential to spread and monitor its behavior in your specific location.

The Bottom Line

Argentine fingergrass offers an intriguing option for warm-climate gardeners seeking drought-tolerant, low-maintenance grasses with distinctive character. While its non-native status calls for thoughtful consideration, its architectural seed heads and easy-care nature make it understandable why it has found a place in American gardens. As with any non-native plant, the key is responsible gardening – enjoying what it offers while staying aware of its impact on your local environment.

Eustachys retusa is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Eustachys retusa is also known as:

Chloris argentina Lillo & | USDA symbol: CHAR10

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Eustachys Desv. - fingergrass

Species: Eustachys retusa (Lag.) Kunth - Argentine fingergrass

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA