Species library › Utricularia › Utricularia juncea
Carnivorous Well documented

Utricularia juncea

Southern bladderwort

A small terrestrial bladderwort with slender, rush-like yellow flower scapes, growing in wet sand and peat at the edges of ponds, bogs and savanna seeps from the south-eastern United States through the Caribbean to Brazil. It is a lowland plant of open, sunny, permanently wet ground. In cultivation it behaves like other small terrestrial Utricularia: full light, pure water and a medium that never dries.

Utricularia juncea
Photo: Alex Popovkin, Bahia, Brazil from Brazil, CC BY 2.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Grows in shallow water and saturated sand or peat in marshes, pond and lagoon margins, wet pine savannas, bogs and flooded coastal scrub (restinga). The traps live in the wet substrate, and the plants are usually in open, sunny vegetation among sedges and grasses.

Mostly at low altitude. Brazilian GBIF specimens range from sea level to about 460 m, most below 70 m, and the North American range is coastal plain.

United States (Atlantic and Gulf coastal plain)CaribbeanCentral AmericaGuianasVenezuelaBrazil

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY 2.0 licence, unmodified.