North America Non-native Plant

Karroochloa Curva

Botanical name: Karroochloa curva

USDA symbol: KACU2

Habit: grass

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Danthonia curva Nees (DACU4)   

Karroochloa curva: A Drought-Loving Grass for Water-Wise Gardens Meet Karroochloa curva, a charming little grass that’s perfectly adapted to life in tough, dry conditions. This South African native might not have a catchy common name, but it makes up for it with serious drought tolerance and an understated elegance that’s ...

Karroochloa curva: A Drought-Loving Grass for Water-Wise Gardens

Meet Karroochloa curva, a charming little grass that’s perfectly adapted to life in tough, dry conditions. This South African native might not have a catchy common name, but it makes up for it with serious drought tolerance and an understated elegance that’s hard to beat.

What Makes Karroochloa curva Special?

This tufted grass belongs to the Poaceae family and was formerly known by the synonym Danthonia curva. True to its species name curva, it features gracefully curved leaves that form neat, compact clumps. The delicate seed heads dance in the breeze, adding movement and texture to any garden setting.

Where Does It Come From?

Karroochloa curva hails from the Karoo region of South Africa, where it has evolved to thrive in some pretty harsh conditions. This arid landscape has shaped the grass into a tough survivor that laughs in the face of drought and poor soils.

Should You Grow It in Your Garden?

If you’re battling dry conditions and looking for a low-maintenance grass that won’t demand constant watering, Karroochloa curva might be your new best friend. Here’s what makes it appealing:

  • Exceptional drought tolerance once established
  • Forms attractive, neat clumps that don’t spread aggressively
  • Requires minimal care and fertilization
  • Adds fine texture and movement to garden designs
  • Perfect for xeriscape and Mediterranean-style gardens

However, if you’re gardening outside of arid climates similar to its native South Africa, you might want to consider native grass alternatives that are better adapted to your local ecosystem and provide more benefits to local wildlife.

Growing Conditions and Care

Karroochloa curva is refreshingly easy to please, as long as you give it what it craves:

  • Sunlight: Full sun is essential for best growth
  • Soil: Well-draining sandy or rocky soils; avoid heavy clay
  • Water: Drought tolerant once established; minimal supplemental watering needed
  • Climate: Best suited for USDA zones 8-11 or similar warm, dry climates

Planting and Establishment Tips

Getting Karroochloa curva started is straightforward if you follow a few key guidelines:

  • Plant seeds in fall when temperatures begin to cool
  • Ensure excellent drainage to prevent root rot
  • Water lightly during establishment, then reduce watering significantly
  • Avoid fertilizing – this grass prefers lean soils
  • Space plantings to allow for natural clump formation

Design Ideas and Garden Roles

This versatile grass works beautifully in several garden settings:

  • Rock gardens where its fine texture contrasts with bold stone
  • Xeriscape designs as a drought-tolerant groundcover
  • Mediterranean-style gardens alongside other arid-adapted plants
  • Erosion control on slopes with challenging growing conditions
  • Container gardens in areas with intense sun exposure

Wildlife and Ecological Benefits

While Karroochloa curva is wind-pollinated and doesn’t attract pollinators directly, it does provide valuable habitat structure for small creatures and can serve as nesting material for birds. However, in regions outside its native range, local native grasses will typically offer greater ecological benefits to your area’s wildlife.

The Bottom Line

Karroochloa curva is a solid choice for gardeners in warm, dry climates who want a low-maintenance grass that can handle tough conditions with grace. While it may not be the showiest plant in your garden, its reliable performance and drought tolerance make it a valuable team player in water-wise landscapes. Just remember to consider native alternatives first if you’re gardening outside of similar arid regions – your local ecosystem will thank you!

Karroochloa Curva

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Karroochloa Conert & Türpe - South African oatgrass

Species

Karroochloa curva (Nees) Conert & Turpe

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