Family: Poaceae

Origin, Description & Uses:
Gigantochloa atroviolacea, commonly known as black bamboo, is native to South-Central and Southeast China as well as parts of Indonesia, including Java and the Lesser Sunda Islands. This impressive clumping bamboo features tall, upright culms that darken to a deep purplish-black as they mature, with bright green young shoots providing a striking contrast. It can reach heights of 50–80 feet, forming dense, elegant clumps that are popular in landscaping for screens, windbreaks, and decorative plantings. The strong, flexible culms are also traditionally used for construction, furniture, fencing, handicrafts, and musical instruments.

Risks & Threats:
Gigantochloa atroviolacea is considered a low-risk species because it is a clumping bamboo, which expands slowly and is generally easy to manage. It does not tend to spread aggressively or invade natural ecosystems. However, in garden or landscape settings, dense stands can develop if left unmanaged, potentially outcompeting smaller plants nearby. With proper maintenance, black bamboo remains an attractive, sustainable, and low-risk option for tropical and subtropical gardens.

High Risk Traits:

• Thrives in tropical climates
  
• May produce viable seeds that can be dispersed by gravity, wind or people
  
• Will resprout after repeated cutting or harvesting of shoots and culms (may be difficult to remove from unwanted areas)

Low Risk Traits:

• No negative impacts have been documented
  
• Non-toxic
  
• Edible shoots
  
• Landscaping and ornamental value
  
• A sympodial, or clumping bamboo
  
• Flowering occurs rarely
  
• Lack of seed production until end of long life cycle