Oahu Riverhemp 🛑 Endangered

Sesbania tomentosa

Native to:
Hawaii, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Sesbania
Species:
Sesbania tomentosa
USDA Symbol:
SETO3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
300 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jan,feb,mar,apr,may,jun,jul,aug,sep,oct,nov,dec
Bloom Colors:
yellow, orange, red
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Garden & Ecology Notes

Wildlife Value:
bees, birds
Salt Tolerant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Can resprout from roots after fire or damage. Historically found in coastal strand and dry shrubland habitats with periodic disturbance.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to coastal areas, tolerates saline conditions

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
7–30 days
Notes:
Scarification of the hard seed coat is required for germination. Hot water treatment or mechanical scarification improves germination rates.

The above propagation data sourced from Claude AI