Small calyx bladderwort Plant Care

Utricularia microcalyx (P.Taylor) P.Taylor

Updated · Sources · How we source care data

"Utricularia microcalyx is a carnivorous plant known for its unique bladder-shaped leaves that trap tiny organisms for nutrition. Originating from Madagascar, this plant thrives in moist, acidic soil and is a favorite among plant enthusiasts for its fascinating feeding mechanism."

Water

Every 2–4 days

Light

Bright indirect light

Temp

65–75°F

Humidity

60–80%

At a glance

How do you care for Small calyx bladderwort?

Water Small calyx bladderwort every 2–4 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 65–75°F (18–24°C) and 60–80% humidity. Fertilize it every month during the growing season.

Where Is the Small calyx bladderwort Native To?

Native range40 countries

What Is the Small calyx bladderwort?

Small calyx bladderwort (Utricularia microcalyx) belongs to the Lentibulariaceae family within the Utricularia genus. Small calyx bladderwort is native to tropical Africa.

Small calyx bladderwort displays a trailing or climbing vine growth habit, reaching up to tall with a spread of approximately . Small calyx bladderwort produces unique, small, colorful snapdragon-like flowers.

Leaf size: approximately 1 inches.

How Often Should You Water a Small calyx bladderwort?

Utricularia microcalyx requires watering every 2–4 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 2–4 days

Let soil partially dry between waterings

What Light Does the Small calyx bladderwort Need?

Small calyx bladderwort thrives in bright indirect light. Avoid placing Small calyx bladderwort in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect light

What Temperature and Humidity Does the Small calyx bladderwort Prefer?

Utricularia microcalyx grows best at temperatures of 65–75°F. Small calyx bladderwort prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

65–75°F

Humidity

60–80%

What Soil Mix Works Best for a Small calyx bladderwort?

Sphagnum moss or peat moss with perlite for a well-aerated, acidic mix. Good drainage is essential for Small calyx bladderwort to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Small calyx bladderwort?

Feed Small calyx bladderwort every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

Fertilizing

Every month

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

How Do You Repot a Small calyx bladderwort?

Repot annually in spring to refresh soil and provide space for growth. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Small calyx bladderwort?

Small calyx bladderwort can be propagated through division, leaf or root cuttings, seeds. Similar propagation techniques also apply to alpine bladderwort plant care, which shares the same genus.

Is the Small calyx bladderwort Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Small calyx bladderwort, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Small calyx bladderwort?

Small calyx bladderwort is susceptible to aphids, spider mites, thrips. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Small calyx bladderwort Need?

Small calyx bladderwort grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Small calyx bladderwort is native to tropical Africa. In cooler regions, grow Small calyx bladderwort as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 10b – 11b

Keep exploring plants

Small calyx bladderwort is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Utricularia genus — compare its care with other Utricularia species on PlantoScan.

Utricularia is part of the Lentibulariaceae plant family — browse all Lentibulariaceae genera and species.

Small calyx bladderwort thrives in bright light and direct sun — see other bright-light plants.

More Utricularia Species

Other Utricularia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Utricularia microcalyx (P.Taylor) P.Taylor, family Lentibulariaceae (first published in Bull. Jard. Bot. Natl. Belg. 41: 270 (1971)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Small calyx bladderwort, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 10b – 11b, estimated from the plant's typical growing conditions.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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