North America Non-native Plant

Pitscale Grass

Botanical name: Hackelochloa

USDA symbol: HACKE2

Life cycle: annual

Habit: grass

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states âš˜ Non-native, reproduces and persists in the wild in Puerto Rico  

Pitscale Grass: What Every Gardener Should Know About This Non-Native Annual If you’ve spotted a small, seemingly insignificant grass popping up in disturbed areas of your garden or local landscape, you might have encountered pitscale grass (Hackelochloa). This annual graminoid—that’s fancy talk for a grass-like plant—has quietly made itself at ...

Pitscale Grass: What Every Gardener Should Know About This Non-Native Annual

If you’ve spotted a small, seemingly insignificant grass popping up in disturbed areas of your garden or local landscape, you might have encountered pitscale grass (Hackelochloa). This annual graminoid—that’s fancy talk for a grass-like plant—has quietly made itself at home across much of the southern and southwestern United States, despite not being a native species.

What Is Pitscale Grass?

Pitscale grass is a non-native annual grass that originally hails from tropical regions of Asia and Africa. It’s one of those plants that most gardeners don’t intentionally invite into their landscapes, yet it shows up anyway. As an introduced species, it reproduces readily in the wild without any human assistance and has established persistent populations across multiple states.

Where You’ll Find Pitscale Grass

This adaptable little grass has spread across a surprising number of locations in the United States. You’ll find established populations in Alabama, Arizona, Florida, Georgia, Hawaii, Louisiana, Maryland, Mississippi, Missouri, New Mexico, Texas, and Puerto Rico. It tends to favor disturbed soils, roadsides, and waste areas—basically anywhere the ground has been disrupted.

Should You Grow Pitscale Grass?

Here’s the short answer: probably not intentionally. While pitscale grass isn’t particularly ornamental or garden-worthy, it’s also not known to be aggressively invasive or harmful. It’s more of a neutral presence in the plant world—not adding much beauty or ecological value, but not causing major problems either.

The grass produces small, inconspicuous seed heads and offers minimal aesthetic appeal. As a wind-pollinated species, it doesn’t provide nectar or pollen resources for bees, butterflies, or other beneficial pollinators that your garden ecosystem needs.

Growing Conditions and Hardiness

If you’re curious about where pitscale grass thrives (perhaps because you’re trying to discourage it), it prefers:

  • USDA hardiness zones 8-11
  • Warm climates with mild winters
  • Disturbed or compacted soils
  • Areas with regular soil disruption

As an annual, it completes its entire life cycle in one growing season, dying back with the first frost in cooler areas.

Better Native Alternatives

Instead of working with pitscale grass, consider these beautiful native grass alternatives that will provide much more value to your landscape and local wildlife:

  • Little bluestem – Gorgeous fall color and excellent wildlife habitat
  • Buffalo grass – Low-maintenance native lawn alternative for arid regions
  • Purple three-awn – Delicate, ornamental grass perfect for naturalized areas
  • Side-oats grama – Attractive seed heads and excellent drought tolerance

The Bottom Line

While pitscale grass isn’t a garden villain, it’s not exactly a garden hero either. If it shows up in your landscape, it’s not cause for alarm, but it’s also not worth actively cultivating. Your garden—and local wildlife—will benefit much more from native grass species that provide food, shelter, and beauty while supporting your local ecosystem.

Focus your energy on planting native alternatives that will give you the ornamental value and ecological benefits that make gardening truly rewarding. Your local pollinators will thank you!

Pitscale Grass

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

Hackelochloa Kuntze - pitscale grass

Species

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