Humped Bladderwort
Utricularia gibba
Last reviewed: August 2026

Toxicity unknown
Humped Bladderwort (Utricularia gibba) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
high
Size
1"–8" H × 2"–12" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, CT, DE and 32 more states
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 437 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Humped bladderwort is a tiny aquatic carnivorous plant that floats in shallow water or very wet soil. It produces small yellow snapdragon-like flowers on thin stems above the water surface during summer months.
In an HOA neighborhood
Humped Bladderwort takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Requires standing water or bog conditions
- Extremely small and unconventional appearance
- May be perceived as pond weeds rather than intentional landscaping
Wildlife value
This specialized aquatic plant provides habitat for small aquatic invertebrates and may attract some small flies and gnats to its flowers.
Common questions
- How much sun does Humped Bladderwort need?
- Humped Bladderwort grows best in part sun conditions.
- When does Humped Bladderwort bloom?
- Humped Bladderwort blooms in June, July, and August.
- Where is Humped Bladderwort native?
- Humped Bladderwort (Utricularia gibba) is native to AL, AR, CT, DE and 32 more states, per the World Checklist of Vascular Plants (Kew).
- Is Humped Bladderwort HOA-friendly?
- Humped Bladderwort takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Humped Bladderwort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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