Fanninia caloglossa Plant Care
Fanninia caloglossa Harv.
Updated · Sources · How we source care data
Fanninia is a species of plants in the family Apocynaceae first described as a genus in 1868. It contains only one known species, Fanninia caloglossa, a tuberous geophyte native to the Eastern Cape, Free State, and KwaZulu-Natal provinces of South Africa.
Every 7–10 days
Bright indirect light
65–80°F
50–70%
At a glance
How do you care for Fanninia caloglossa?
Plant Fanninia caloglossa in bright indirect light (USDA zones 13b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 65–80°F (18–27°C). Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the Fanninia caloglossa Native To?
What Is the Fanninia caloglossa?
Fanninia caloglossa (Fanninia caloglossa) belongs to the Apocynaceae family within the Fanninia genus. Fanninia caloglossa is native to the Eastern Cape, Free State, and KwaZulu-Natal provinces of South Africa.
Fanninia caloglossa displays a compact, spreading shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 3 ft. Fanninia caloglossa produces small star-shaped flowers in clusters of pink, white, or purple.
Leaf size: approximately 4 inches.
How Often Should You Water a Fanninia caloglossa?
Water a young or newly planted Fanninia caloglossa every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Fanninia caloglossa Need?
Fanninia caloglossa thrives in bright indirect light. Avoid placing Fanninia caloglossa in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Fanninia caloglossa Prefer?
Fanninia caloglossa tolerates temperatures of 65–80°F. Fanninia caloglossa prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–80°F
Humidity
50–70%
What Soil Mix Works Best for a Fanninia caloglossa?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Fanninia caloglossa to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Fanninia caloglossa?
Feed Fanninia caloglossa every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Fanninia caloglossa?
Choose a spot with bright indirect light and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.
Fanninia caloglossa is suited to USDA Zone 13b.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Fanninia caloglossa?
Fanninia caloglossa can spread to about 3 ft (0.9 m) and reach about 3 ft (1 m) tall. Space plants about 3 ft (0.9 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Fanninia caloglossa?
Prune Fanninia caloglossa while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Fanninia caloglossa in Winter?
Fanninia caloglossa is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Fanninia caloglossa?
Fanninia caloglossa can be propagated through stem cuttings, air layering.
Is the Fanninia caloglossa Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Mildly toxic if ingested, can cause skin irritation
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 Fanninia caloglossa?
Fanninia caloglossa is susceptible to aphids, scale insects, spider mites. 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 Fanninia caloglossa Need?
Fanninia caloglossa grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Fanninia caloglossa is native to the Eastern Cape, Free State, and KwaZulu-Natal provinces of South Africa. In cooler regions, grow Fanninia caloglossa as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Fanninia caloglossa 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 Fanninia genus — compare its care with other Fanninia species on PlantoScan.
Fanninia is part of the Apocynaceae plant family — browse all Apocynaceae genera and species.
Fanninia caloglossa thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Fanninia caloglossa Harv., family Apocynaceae (first published in Gen. S. Afr. Pl. , ed. 2: 235 (1868)) — World Flora Online record, IPNI name record.
- Pet toxicity: Fanninia caloglossa is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. 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.
