Family: Orchidaceae
Origin, Description & Uses
Vanda tricolor is an orchid native to western Java, Indonesia, where it grows as an epiphyte on trees in warm tropical forests. It is prized for its attractive, fragrant flowers, which are typically white to cream with purple or brown spotting and a colorful lip. This long-lived orchid is popular among collectors and gardeners and has also been used extensively in orchid breeding to develop ornamental hybrids. It thrives in warm, humid climates with bright, filtered light and is commonly cultivated in tropical landscapes and greenhouses.
Risks & Threats
Vanda tricolor is naturalized in Hawaiʻi, with established populations on Oʻahu and evidence that it is potentially naturalizing on Maui and Hawaiʻi Island. It possesses traits that are cause for concern, including the ability to establish outside cultivation, and could detrimentally impact tropical island ecosystems by spreading into natural areas and competing with native epiphytic plants for space and resources. Because of these risks, planting low-risk or native alternatives is recommended whenever suitable options are available. In areas where Vanda tricolor is already widespread, gardeners and land managers should avoid planting it near natural habitats and help prevent its further spread into locations where it is not yet well established.
High Risk Traits:
- Naturalized or potentially naturalizing in Hawaii (O'ahu [naturalized], Maui [potentially naturalizing], Hawai'i [potentially naturalizing])
- Widely cultivated and introduced outside native range
- Smothers host trees with dense aerial roots
- Produces viable, self-compatible seed
- Reaches reproductive maturity in <1 year
- Seeds are tiny, wind-dispersed, and easily spread unintentionally
- Ornamental trade promotes intentional dispersal
- Host to known pests/pathogens
Low Risk Traits:
- Not toxic, parasitic, allelopathic, or a fire hazard
- Not bird-dispersed (no fleshy fruit)
