Brackenridge's Rosemallow 🛑 Endangered
Hibiscus brackenridgei
- Native to:
- Hawaii, United States
David Eickhoff (www.flickr.com) from Pearl City, Hawaii, USA






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Malvaceae
- Genus:
- Hibiscus
- Species:
- Hibiscus brackenridgei
- USDA Symbol:
- HIBR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 300 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jan,feb,mar,apr,may,jun,jul,aug,sep,oct,nov,dec
- Bloom Colors:
- yellow
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to Hawaiian dry forests and shrublands
Propagation & Germination
- Stratification:
- None required
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 14–60 days
- Notes:
- Seeds have a hard coat; scarification (nicking or soaking in hot water) improves germination rates significantly.
The above propagation data sourced from Claude AI