Schedule Change

On Friday, September 19, the U.S. Botanic Garden's outdoor National Garden will close early at 5 p.m. It will reopen for regularly scheduled hours on Saturday, September 20 at 10 a.m.

Maʻo hau hele or Aloalo

Plant Botanical Name: 
Hibiscus brackenridgei
USBG Plant Location: 
Conservatory
Conservatory Room Location: 
Hawaii
Plant Threat Level: 
Endangered

Hibiscus brackenridgei, the state flower of Hawaii, is an endangered plant endemic to the Hawaiian islands. Unfortunately, there are less than 60 plants in eight populations on the islands of Lanai, Maui, and Hawaii, which are protected by the Endangered Species Act. Threats that include development, overgrazing by livestock and feral animals, as well as competition from invasive weeds have contributed to the drastic reduction in wild populations. Measures being taken by conservationists and botanic gardens to protect the few remaining populations of Hibiscus brackenridgei include weed control, fencing to exclude animals, preservation of remaining intact habitat and conservation of plants and seeds in botanical gardens and seed banks.