ʻOhai (Sesbania tomentosa)

Common names:
Give a thumbs up ʻOhai
Give a thumbs up Oʻahu Riverhemp

General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 10a -1.1 °C (30 °F) to +1.7 °C (35 °F)
Maximum recommended zone: Zone 11
Plant Height: Variable, some grow as shrubs or small trees to 15 feet in height, others have a prostrate form.
Plant Spread: 15 to 40 feet.
Leaves: Evergreen
Other: Leaf color varies from silvery to dark green
Fruit: Showy
Other: Long greenish bean pods, turning light brown when ripe and containing several long dark green beans.
Flowers: Showy
Flower Color: Orange
Other: Rarely, pure yellow.
Bloom Size: 1"-2"
Flower Time: Year Round
Other: Peak bloom periods are winter and spring.
Underground structures: Taproot
Suitable Locations: Beach Front
Patio/Ornamental/Small Tree
Uses: Windbreak or Hedge
Cut Flower
Dynamic Accumulator: Nitrogen fixer
Resistances: Humidity tolerant
Drought tolerant
Salt tolerant
Propagation: Seeds: Scarify seeds: Nick the seed coat.
Days to germinate: @ 7 days
Depth to plant seed: 1/4 to 1/2 inch
Other info: After scarifying, soak in hot water for several hours or overnight.
Propagation: Other methods: Cuttings: Stem
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Conservation status: Endangered (EN)

Conservation status:
Conservation status: Endangered
photo by Forest & Kim Starr

Photo gallery:

Discussion Threads about this plant
Thread Title Last Reply Replies
Salt tolerant plants by eclayne Feb 8, 2013 9:39 PM 130

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