Neptunia pubescens

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Tropical Neptunia, Tropical Puff

Fabaceae (Leguminosae)

Plant Specifics

Size:0.25 -0.5 ft
Life Span:Short-lived perennial
Flower Color:Yellow
Fruit Color:NA
Noted for:Showy flowers, Interesting foliage


Recommended Uses:Groundcover.
Propagation:Division, seed.
Availability:Friends, Native nurseries, Seed
Light: Full Sun
Moisture Tolerance:
always floodedextremely dry
 (Somewhat moist, no flooding ----- to ----- Very long very dry periods)
Moisture Tolerance: Somewhat moist, no flooding ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Moderate. Tolerant of salty wind and may get some salt spray. Exposure to salt spray would be uncommon (major storms).
Soil or other substrate:Lime rock, Sand
Soil pH:Calcareous (high pH)



  • Larval host plant for ceraunus blue (Hemiargus ceraunus) butterflies.
  • Attracts bees and butterflies.

Native Habitats:River banks, coastal pinelands, edges of salt marshes.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 10B 11 8B 9A 9B 

USDA zones are based on minimum winter temperatures


General Comments:Not widely grown.