Mariana Aglaia (Aglaia mariannensis)

Photo: fletchermooreCC BY 4.0via iNaturalistresized / cropped

Mariana Aglaia Plant Care

Aglaia mariannensis Merr.

Updated · Sources · How we source care data

This plant's uniquely shaped glossy leaves with a striking red underside can be found in the rainforests of Taiwan. Plant collectors are drawn to Aglaia mariannensis for its rarity and stunning foliage, making it a coveted addition to any collection.

🌳Trees
Water

Every 7–10 days

Light

Bright indirect light

Temp

65–80°F

Humidity

50–70%

At a glance

How do you care for Mariana Aglaia?

Plant Mariana Aglaia in bright indirect light (USDA zones 11a–12b) 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.

Where Is the Mariana Aglaia Native To?

Native range2 countries

What Is the Mariana Aglaia?

Mariana Aglaia (Aglaia mariannensis) belongs to the Meliaceae family within the Aglaia genus. Mariana Aglaia is native to the Mariana Islands, including Guam and the Northern Mariana Islands, with large dark green, glossy pinnately compound leaves, densely arranged on stems.

Mariana Aglaia displays a compact, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Mariana Aglaia produces small, fragrant clusters of yellow flowers.

Leaf size: approximately 4 inches.

How Often Should You Water a Mariana Aglaia?

Water a young or newly planted Mariana Aglaia 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 Mariana Aglaia Need?

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

Light Requirement

Bright indirect light

What Temperature and Humidity Does the Mariana Aglaia Prefer?

Aglaia mariannensis tolerates temperatures of 65–80°F. Mariana Aglaia 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 Mariana Aglaia?

Well-draining, fertile soil with added organic matter. Good drainage is essential for Mariana Aglaia to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Mariana Aglaia?

Feed Mariana Aglaia 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 Mariana Aglaia?

Choose a spot with bright indirect light and well-draining, fertile soil with added organic matter. Avoid low spots where water collects after rain.

Mariana Aglaia is suited to USDA Zone 11a – 12b.

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 Mariana Aglaia?

Mariana Aglaia can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 plant spacing calculator.

How Do You Prune a Mariana Aglaia?

Prune Mariana Aglaia 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 Mariana Aglaia in Winter?

Mariana Aglaia is frost-tender (hardy to USDA zone 11). 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 Mariana Aglaia?

Mariana Aglaia can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to aglaia aherniana plant care, which shares the same genus.

Is the Mariana Aglaia Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Mariana Aglaia, 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 Mariana Aglaia?

Mariana Aglaia 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 Mariana Aglaia Need?

Mariana Aglaia grows outdoors in USDA Zone 11a – 12b. It survives winters down to planting zone 11a. Mariana Aglaia is native to the Mariana Islands, including Guam and the Northern Mariana Islands, with large dark green, glossy pinnately compound leaves, densely arranged on stems. In cooler regions, grow Mariana Aglaia as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 11a – 12b

Keep exploring plants

Mariana Aglaia 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 Aglaia genus — compare its care with other Aglaia species on PlantoScan.

Aglaia is part of the Meliaceae plant family — browse all Meliaceae genera and species.

Mariana Aglaia thrives in bright light and direct sun — see other bright-light plants.

More Aglaia Species

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

Sources

  • Scientific name & taxonomy: Aglaia mariannensis Merr., family Meliaceae (first published in Philipp. J. Sci., C 9: 99 (1914)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Mariana Aglaia, 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.
  • Photo: fletchermoore, CC BY 4.0, iNaturalist — original.
  • Hardiness zone: USDA Zone 11a – 12b, 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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