North America Non-native Plant

Argentina Mountain Bamboo

Botanical name: Chusquea montana

USDA symbol: CHMO12

Habit: grass

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

Argentina Mountain Bamboo: A Mysterious South American Grass If you’ve stumbled across the name Argentina mountain bamboo (Chusquea montana) in your plant research, you’re probably wondering what exactly this grass-like plant is all about. Well, you’re not alone in your curiosity – this particular bamboo species is something of an ...

Argentina Mountain Bamboo: A Mysterious South American Grass

If you’ve stumbled across the name Argentina mountain bamboo (Chusquea montana) in your plant research, you’re probably wondering what exactly this grass-like plant is all about. Well, you’re not alone in your curiosity – this particular bamboo species is something of an enigma in the gardening world, with limited information readily available to home gardeners.

What is Argentina Mountain Bamboo?

Chusquea montana belongs to the grass family (Poaceae) and is part of the broader Chusquea genus, which includes various bamboo species native to South America. As its common name suggests, this particular species is associated with Argentina’s mountainous regions, though specific details about its exact native range remain unclear in readily available sources.

The Information Gap

Here’s where things get a bit tricky for eager gardeners. Unlike many popular bamboo species, detailed information about Chusquea montana’s specific growing requirements, mature size, hardiness zones, and garden performance is surprisingly scarce. This lack of readily available information suggests it’s either:

  • Not commonly cultivated outside its native range
  • Relatively new to botanical documentation
  • Primarily of interest to specialized researchers rather than home gardeners

Should You Consider Growing It?

Given the limited information available about this specific species, proceeding with caution would be wise. While we know it’s a grass-like plant in the bamboo family, we don’t have clear details about:

  • Its potential invasiveness (a common concern with bamboos)
  • Specific growing conditions it requires
  • How large it gets or how quickly it spreads
  • Its cold hardiness in different climate zones
  • Its behavior in garden settings

A Better Approach: Consider Native Alternatives

Rather than taking a chance on a poorly documented bamboo species, consider exploring native grass alternatives that are well-suited to your specific region. Native grasses offer several advantages:

  • Well-documented growing requirements
  • Known benefits to local wildlife and pollinators
  • Adapted to local climate conditions
  • No risk of unexpected invasive behavior

If You’re Still Curious

Should you come across Chusquea montana from a reputable source and feel compelled to try it, proceed with the same caution you’d use for any bamboo:

  • Plant it in containers to control spread
  • Monitor it closely for aggressive growth
  • Check with local extension services about bamboo regulations in your area
  • Be prepared to remove it if it becomes problematic

The Bottom Line

While Argentina mountain bamboo might sound intriguing, the lack of detailed cultivation information makes it a risky choice for most home gardeners. Your garden (and your neighbors) will likely be better served by choosing well-documented native plants that provide known benefits without the uncertainty. Sometimes in gardening, mystery isn’t necessarily a good thing – especially when it comes to potentially spreading plants like bamboos.

If you’re drawn to the idea of ornamental grasses in your landscape, consult with local native plant societies or extension services to discover beautiful, well-behaved options that will thrive in your specific growing conditions.

Argentina Mountain Bamboo

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

Chusquea Kunth - chusquea bamboo

Species

Chusquea montana Phil. - Argentina mountain bamboo

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