Toothed Phebalium Plant Care

Leionema dentatum (Sm.) Paul G.Wilson

Updated · Sources · How we source care data

Leionema dentatum, commonly known as toothed phebalium is a species of large shrub or small tree that is endemic to New South Wales, Australia. It has variable leaves, slender branches and clusters of cream-yellow flowers in spring.

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Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–80°F

Humidity

40–70%

At a glance

How do you care for Toothed Phebalium?

Plant Toothed Phebalium in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–14 days until it is established. It tolerates temperatures of 50–80°F (10–27°C). Fertilize it every 6 months during the growing season.

Where Is the Toothed Phebalium Native To?

Native range1 country

What Is the Toothed Phebalium?

Toothed Phebalium (Leionema dentatum) belongs to the Rutaceae family within the Leionema genus. Toothed Phebalium is native to New South Wales, Australia.

Toothed Phebalium displays a compact, spreading shrub growth habit, reaching up to 3 ft tall with a spread of approximately 4 ft. Toothed Phebalium produces small clusters of white or pink flowers.

Leaf size: approximately 2 inches.

How Often Should You Water a Toothed Phebalium?

Water a young or newly planted Toothed Phebalium every 7–14 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 7–14 days

Until established; then in dry spells

What Light Does the Toothed Phebalium Need?

Toothed Phebalium thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Toothed Phebalium Prefer?

Leionema dentatum tolerates temperatures of 50–80°F. Toothed Phebalium prefers humidity levels of 40–70%.

Temperature

50–80°F

Humidity

40–70%

What Soil Mix Works Best for a Toothed Phebalium?

Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Toothed Phebalium to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Toothed Phebalium?

Feed Toothed Phebalium 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 Toothed Phebalium?

Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Toothed Phebalium is suited to USDA Zone 12a.

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 Toothed Phebalium?

Toothed Phebalium can spread to about 4 ft (1.2 m) and reach about 3 ft (1 m) tall. Space plants about 4 ft (1.2 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 Toothed Phebalium?

Prune Toothed Phebalium 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 Toothed Phebalium in Winter?

Toothed Phebalium is frost-tender (hardy to USDA zone 12). 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 Toothed Phebalium?

Toothed Phebalium can be propagated through softwood cuttings, seeds. Similar propagation techniques also apply to ambiguous waxflower plant care, which shares the same genus.

Is the Toothed Phebalium Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Toothed Phebalium, 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 Toothed Phebalium?

Toothed Phebalium is susceptible to aphids, scale insects, citrus leaf miner. 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 Toothed Phebalium Need?

Toothed Phebalium grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Toothed Phebalium is native to New South Wales, Australia. In cooler regions, grow Toothed Phebalium as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Toothed Phebalium 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 Leionema genus — compare its care with other Leionema species on PlantoScan.

Leionema is part of the Rutaceae plant family — browse all Rutaceae genera and species.

Toothed Phebalium thrives in bright light and direct sun — see other bright-light plants.

More Leionema Species

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

Sources

  • Scientific name & taxonomy: Leionema dentatum (Sm.) Paul G.Wilson, family Rutaceae (first published in Nuytsia 12: 272 (1998)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Toothed Phebalium, 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 12a, 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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