North America Native Plant

Hall’s Panicgrass

Botanical name: Panicum hallii var. hallii

USDA symbol: PAHAH

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Panicum lepidulum Hitchc. & Chase (PALE2)   

Hall’s Panicgrass: A Hidden Gem for Native Grass Enthusiasts If you’re looking to add an authentic touch of the American Southwest to your garden, Hall’s panicgrass (Panicum hallii var. hallii) might just be the native grass you never knew you needed. This perennial beauty brings both ecological value and subtle ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Hall’s Panicgrass: A Hidden Gem for Native Grass Enthusiasts

If you’re looking to add an authentic touch of the American Southwest to your garden, Hall’s panicgrass (Panicum hallii var. hallii) might just be the native grass you never knew you needed. This perennial beauty brings both ecological value and subtle charm to landscapes across its native range.

What is Hall’s Panicgrass?

Hall’s panicgrass is a native perennial grass that calls the southwestern and south-central United States home. Also known by its synonym Panicum lepidulum, this graminoid species represents the authentic grassland heritage of regions stretching from the desert Southwest to the Great Plains.

Where Does Hall’s Panicgrass Grow?

This native beauty naturally occurs across six states: Arizona, Colorado, New Mexico, Oklahoma, Texas, and Utah. Its wide geographic distribution speaks to its adaptability across diverse climates and elevations throughout the American Southwest and southern Rocky Mountain region.

Important Conservation Considerations

Before you rush to plant Hall’s panicgrass, there’s something important to know: this species has a Global Conservation Status of S3S4Q, indicating some level of conservation concern. While not critically endangered, this status means we should be thoughtful about how we source and grow this grass.

If you decide to grow Hall’s panicgrass, please ensure you’re obtaining seeds or plants from reputable native plant suppliers who source their material responsibly. Never collect from wild populations, and consider supporting conservation efforts by choosing this native over non-native alternatives.

Why Choose Hall’s Panicgrass for Your Garden?

There are several compelling reasons to consider this native grass:

  • Authentic regional character: Nothing beats the real deal when creating a true southwestern landscape
  • Low maintenance: As a native perennial, it’s adapted to local conditions once established
  • Wildlife support: Native grasses provide seeds for birds and habitat for beneficial insects
  • Drought tolerance: Likely well-adapted to dry conditions given its native range
  • Conservation value: Growing natives helps preserve local ecosystems

Garden Design and Landscape Use

Hall’s panicgrass works beautifully in several garden styles:

  • Native plant gardens: Perfect for authentic regional plantings
  • Prairie restorations: Helps recreate natural grassland communities
  • Xeriscaping: Ideal for water-wise landscaping
  • Naturalized areas: Great for low-maintenance, natural-looking spaces
  • Accent plantings: Adds texture and movement to mixed borders

Growing Conditions and Care

While specific growing requirements for Hall’s panicgrass aren’t widely documented, we can make educated guesses based on its native habitat and the needs of related Panicum species:

  • Sunlight: Likely prefers full sun
  • Soil: Probably adaptable to various soil types, possibly preferring well-draining soils
  • Water: Once established, likely drought-tolerant
  • Hardiness: Based on its geographic range, probably hardy in USDA zones 4-9

Planting and Establishment Tips

For the best success with Hall’s panicgrass:

  • Plant in spring after the last frost for best establishment
  • Water regularly during the first growing season to help roots establish
  • Once established, reduce watering and let natural rainfall take over
  • Allow seed heads to remain through winter for wildlife food and winter interest
  • Cut back in late winter or early spring before new growth begins

Wildlife and Ecological Benefits

Like many native grasses, Hall’s panicgrass likely provides important ecological services:

  • Seeds feed birds and small mammals
  • Provides nesting material and habitat structure
  • Supports native insect communities
  • Helps prevent soil erosion
  • Contributes to authentic native plant communities

The Bottom Line

Hall’s panicgrass offers native plant enthusiasts a chance to grow something truly special – a grass that represents the authentic character of southwestern landscapes. While its conservation status means we need to be mindful about sourcing, growing this native beauty can be a rewarding way to support local ecosystems while creating beautiful, low-maintenance landscapes.

Just remember: when it comes to Hall’s panicgrass, responsible sourcing isn’t just good practice – it’s essential for ensuring future generations can enjoy this native treasure too.

Hall’s Panicgrass

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

Panicum L. - panicgrass

Species

Panicum hallii Vasey - Hall's panicgrass

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