Karrabina biagiana Plant Care
Karrabina biagiana (F.Muell.) Rozefelds & H.C.Hopkins
Updated · Sources · How we source care data
Karrabina biagiana is a species of large rainforest trees commonly known as northern brush mahogany, northern brush mararie or red carabeen, in the plant family Cunoniaceae. This species used to be placed in the genus Geissois as Geissois biagiana.
Every 7–14 days
Full sun to partial shade
60–80°F
50–70%
At a glance
How do you care for Karrabina biagiana?
Plant Karrabina biagiana in full sun to partial shade (USDA zones 13a) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.
What Is the Karrabina biagiana?
Karrabina biagiana (Karrabina biagiana) belongs to the Cunoniaceae family within the Karrabina genus.
Karrabina biagiana displays a tall, upright tree growth habit, reaching up to 30 ft tall with a spread of approximately 15 ft. Karrabina biagiana produces small clusters of white or pink flowers.
Leaf size: approximately 6 inches.
How Often Should You Water a Karrabina biagiana?
Water a young or newly planted Karrabina biagiana every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–14 days
Until established; then in dry spells
What Light Does the Karrabina biagiana Need?
Karrabina biagiana thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Karrabina biagiana Prefer?
Karrabina biagiana tolerates temperatures of 60–80°F. Karrabina biagiana prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Karrabina biagiana?
Rich, well-draining soil with added organic matter like compost or peat moss. Good drainage is essential for Karrabina biagiana to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Karrabina biagiana?
Feed Karrabina biagiana every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees 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 Karrabina biagiana?
Choose a spot with full sun to partial shade and rich, well-draining soil with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.
Karrabina biagiana is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Karrabina biagiana?
Karrabina biagiana can spread to about 15 ft (4.6 m) and reach about 30 ft (9 m) tall. Space plants about 15 ft (4.6 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 tree spacing calculator.
How Do You Prune a Karrabina biagiana?
Prune Karrabina biagiana 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 tree in one year.
How Do You Care for a Karrabina biagiana in Winter?
Karrabina biagiana 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 Karrabina biagiana?
Karrabina biagiana can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to karrabina benthamiana plant care, which shares the same genus.
Is the Karrabina biagiana Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Karrabina biagiana, 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 Karrabina biagiana?
Karrabina biagiana is susceptible to aphids, scale insects. 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 Karrabina biagiana Need?
Karrabina biagiana grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Karrabina biagiana as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Karrabina biagiana 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 Karrabina genus — compare its care with other Karrabina species on PlantoScan.
Karrabina is part of the Cunoniaceae plant family — browse all Cunoniaceae genera and species.
Karrabina biagiana 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: Karrabina biagiana (F.Muell.) Rozefelds & H.C.Hopkins, family Cunoniaceae (first published in Austral. Syst. Bot. 26: 181 (2013)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Karrabina biagiana, 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 13a, 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.
