Columnea microcalyx Plant Care
Columnea microcalyx Hanst.
Updated · Sources · How we source care data
Columnea microcalyx, called the goldfish plant or orange columnea, is a species of flowering plant in the genus Columnea, native to southeast Mexico, Central America, Columbia and Venezuela. Its cultivar 'Superba' has gained the Royal Horticultural Society's Award of Garden Merit.
Every 7–10 days
Bright indirect light to partial shade
65–75°F
50–70%
At a glance
How do you care for Columnea microcalyx?
Water Columnea microcalyx every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light to partial shade. It prefers temperatures of 65–75°F (18–24°C) and 50–70% humidity. Fertilize it every 4 months during the growing season.
Where Is the Columnea microcalyx Native To?
What Is the Columnea microcalyx?
Columnea microcalyx (Columnea microcalyx) belongs to the Gesneriaceae family within the Columnea genus. Columnea microcalyx is native to southeast Mexico, Central America, Columbia and Venezuela.
Columnea microcalyx displays a trailing, vine-like habit growth habit, reaching up to 1.5 ft tall with a spread of approximately 2 ft. Columnea microcalyx produces tubular, brightly colored flowers in shades of red, orange, or yellow.
Leaf size: approximately 3 inches.
How Often Should You Water a Columnea microcalyx?
Columnea microcalyx requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Columnea microcalyx Need?
Columnea microcalyx thrives in bright indirect light to partial shade. Avoid placing Columnea microcalyx in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light to partial shade
What Temperature and Humidity Does the Columnea microcalyx Prefer?
Columnea microcalyx grows best at temperatures of 65–75°F. Columnea microcalyx prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–75°F
Humidity
50–70%
What Soil Mix Works Best for a Columnea microcalyx?
Well-draining, peat-based potting mix with added perlite for aeration. Good drainage is essential for Columnea microcalyx to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Columnea microcalyx?
Feed Columnea microcalyx every 4 months 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 4 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Columnea microcalyx?
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 Columnea microcalyx?
Columnea microcalyx can be propagated through stem cuttings, division, leaf cuttings. Similar propagation techniques also apply to goldfish plant plant care, which shares the same genus.
Is the Columnea microcalyx Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Columnea microcalyx, 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 Columnea microcalyx?
Columnea microcalyx is susceptible to aphids, spider mites, mealybugs. 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 Columnea microcalyx Need?
Columnea microcalyx grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Columnea microcalyx is native to southeast Mexico, Central America, Columbia and Venezuela. In cooler regions, grow Columnea microcalyx as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Columnea microcalyx 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 Columnea genus — compare its care with other Columnea species on PlantoScan.
Columnea is part of the Gesneriaceae plant family — browse all Gesneriaceae genera and species.
Columnea microcalyx thrives in bright light and direct sun — see other bright-light plants.
More Columnea Species
Other Columnea species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Columnea microcalyx Hanst., family Gesneriaceae (first published in Linnaea 34: 408 (1866)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Columnea microcalyx, 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 13b, calculated from the plant's minimum temperature.
- 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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