Java-Bean
Senna obtusifolia
- Native to:
- Argentina, Bahamas, Belize, Bolivia, Brazil, Cayman Is., Colombia, Costa Rica, Dominican Republic, French Guiana, Galápagos, Guam, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexican Pacific Is., Mexico, Netherlands Antilles, Nicaragua, Palau, Panamá, Paraguay, Peru, Puerto Rico, Southwest Caribbean, Suriname, Trinidad-Tobago, United States, Venezuelan Antilles, Virgin Islands, Windward Is.
DouglasGoldman






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Fabaceae
- Genus:
- Senna
- Species:
- Senna obtusifolia
- USDA Symbol:
- SEOB4
Growth Characteristics
- Life Cycle:
- Annual | Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 150 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jul,aug,sep,oct
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Anabasis ochrodesma, Salt Marsh Moth (Estigmene acrea), Western tussock moth (Orgyia vetusta)
Reported Fauna Sightings
Bees: Common eastern bumble bee (Bombus impatiens) Butterflies:Cloudless Sulphur (Phoebis sennae), Sleepy Orange (Eurema nicippe)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, bees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- well-drained, sandy or loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- tolerates nutrient-poor conditions
Propagation & Germination
- Stratification:
- None required
- Scarification:
- Seed coat scarification required before sowing
- Germination Time:
- 7–21 days
- Notes:
- Hard seed coat requires scarification (mechanical or hot water treatment) for optimal germination. Seeds germinate readily in warm conditions after treatment.
The above propagation data sourced from Claude AI