Woolly Senna

Senna hirsuta

Native to:
Argentina, Belize, Bolivia, Brazil, Cayman Is., Colombia, Costa Rica, Cuba, El Salvador, Honduras, Leeward Is., Mexico, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, United States, Uruguay, Virgin Islands, Windward Is.

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Senna
Species:
Senna hirsuta
USDA Symbol:
SEHI2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Shrub , Subshrub , Tree
Height:
200 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
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

Sleepy Orange (Eurema nicippe)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rootstock following fire; common in fire-maintained disturbed habitats.

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:
native to open, disturbed areas; tolerates poor soils

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–30 days
Notes:
Seeds have hard coat requiring scarification (hot water treatment or mechanical). Germinates readily after treatment.

The above propagation data sourced from Claude AI