Uniola paniculata

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Sea Oats

Poaceae (Gramineae)

Plant Specifics

Size:4 - 6 ft tall by wide-spreading ft wide
Life Span:Long-lived perennial
Flower Color:Yellow
Fruit Color:Brown
Phenology:Winter dormant. Deep-rooted and spreading by rhisomes. Blooms spring-fall.
Noted for:Showy fruits, Hurricane wind resistance


Recommended Uses:Specimen plant. Mass plantings on beach dunes for stabilization. Seed heads useful in dried arrangements.
Considerations:Spreads aggressively via rhizomes.
Propagation:Seed, division, root cuttings..
Availability:Native nurseries, FNPS plant sales, Seed
Light: Full Sun
Moisture Tolerance:
always floodedextremely dry
 (Not wet but not extremely dry ----- to ----- Very long very dry periods)
Moisture Tolerance: Not wet but not extremely dry ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Tolerant of occasional/brief inundation such as can occur in storm surges.
Salt Spray/ Salty Soil Tolerance:High. Can tolerate significant and ongoing amounts of salty wind and salt spray without injury.
Soil or other substrate:Sand
Soil pH:Mostly neutral



Birds and other wildlife eat the seeds.

Native Habitats:Beach dunes, coastal grasslands.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

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

USDA zones are based on minimum winter temperatures


Ethnobotany:This plant is used heavily for dune stabilization. It is illegal to dig it up in Florida due to its important role in protecting the dunes.
General Comments:This is a protected plant as it is of major importance to the stabilization of beach dunes.