Family: Rosaceae

Origin, Description & Uses
Prunus campanulata (bellflower cherry, Taiwan cherry) is native to a broad region extending from Arunachal Pradesh through southern China and Vietnam, as well as Taiwan. It is a small to medium-sized ornamental cherry tree valued for its striking early-season display of bright pink to reddish, bell-shaped flowers. The tree typically blooms in late winter to early spring before leaf-out, making it especially popular in landscaping for its seasonal color and ability to attract pollinators such as bees. It is sometimes planted in gardens, parks, and along streets for ornamental shade and aesthetic appeal.

Risks & Threats
This species is naturalized on Kauaʻi and possesses traits that are cause for concern in Hawaiian ecosystems, including its ability to reproduce readily and establish in a range of habitats. Once established, it can spread beyond intended plantings, potentially competing with native vegetation and altering natural plant communities in sensitive tropical island environments. Because of these risks, Prunus campanulata could detrimentally impact Hawaii’s ecosystems if its spread continues unchecked. When available, it is recommended to choose low-risk or native alternatives that provide similar ornamental value. Where this species is already present, efforts should focus on preventing further planting and managing populations in areas where it is not yet widely established to reduce additional ecological impacts.

High Risk Traits:

• Elevation range exceeds 1000 m, demonstrating environmental versatility
  
• Grows in temperate to subtropical climates
  
• Naturalized on Kauai (Hawaiian Islands), Australia, New Zealand, SE USA
  
• An environmental weed in New Zealand
  
• Shade-tolerant
  
• Tolerates many soil types
  
• Forms dense stands in New Zealand, interfering with native plant regeneration
  
• Reproduces by seeds
  
• Reaches maturity in 1-3 years
  
• Seeds dispersed by birds and intentionally by people
  
• Prolific seeder (densities unspecified)
  
• Seeds may form a persistent seed bank
  
• Able to resprout after cutting

Low Risk Traits:

• Unarmed (no spines, thorns or burrs)
  
• Despite weediness, valued as an ornamental
  
• Not reported to spread vegetatively