Rapa nui Sophora Plant Care

Sophora rapaensis H.St.John

Updated · Sources · How we source care data

The plant with uniquely shaped, glossy green leaves and clusters of vibrant yellow flowers originates from the volcanic slopes of Rapa Nui, also known as Easter Island. Plant collectors are drawn to Sophora rapaensis for its rare and endangered status, making it a prized addition to any botanical collection.

🌳Trees🌿Shrubs🍃Climbers & Vines
Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–85°F

Humidity

40–70%

At a glance

How do you care for Rapa nui Sophora?

Plant Rapa nui Sophora in full sun to partial shade (USDA zones 12a) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 50–85°F (10–29°C). Fertilize it every 6 months during the growing season.

Where Is the Rapa nui Sophora Native To?

Native range1 country

What Is the Rapa nui Sophora?

Rapa nui Sophora (Sophora rapaensis) belongs to the Fabaceae family within the Sophora genus. Rapa nui Sophora is native to the island of Rapa Iti in the Tubuai Islands of French Polynesia.

Rapa nui Sophora displays an upright, spreading tree growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Rapa nui Sophora produces clusters of pea-like flowers in shades of white, pink, or purple.

Leaf size: approximately 6 inches.

How Often Should You Water a Rapa nui Sophora?

Water a young or newly planted Rapa nui Sophora 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 Rapa nui Sophora Need?

Rapa nui Sophora thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Rapa nui Sophora Prefer?

Sophora rapaensis tolerates temperatures of 50–85°F. Rapa nui Sophora prefers humidity levels of 40–70%.

Temperature

50–85°F

Humidity

40–70%

What Soil Mix Works Best for a Rapa nui Sophora?

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Rapa nui Sophora to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Rapa nui Sophora?

Feed Rapa nui Sophora 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 Rapa nui Sophora?

Choose a spot with full sun to partial shade and well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

Rapa nui Sophora is suited to USDA Zone 12a.

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 Rapa nui Sophora?

Rapa nui Sophora can spread to about 20 ft (6.1 m) and reach about 30 ft (9 m) tall. Space plants about 20 ft (6.1 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 Rapa nui Sophora?

Prune Rapa nui Sophora 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 Rapa nui Sophora in Winter?

Rapa nui Sophora 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 Rapa nui Sophora?

Rapa nui Sophora can be propagated through seeds, softwood cuttings. Similar propagation techniques also apply to fernandez sophora plant care, which shares the same genus.

Is the Rapa nui Sophora Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Rapa nui Sophora, 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 Rapa nui Sophora?

Rapa nui Sophora is susceptible to aphids, caterpillars, 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 Rapa nui Sophora Need?

Rapa nui Sophora grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Rapa nui Sophora is native to the island of Rapa Iti in the Tubuai Islands of French Polynesia. In cooler regions, grow Rapa nui Sophora as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Rapa nui Sophora 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 Sophora genus — compare its care with other Sophora species on PlantoScan.

Sophora is part of the Fabaceae plant family — browse all Fabaceae genera and species.

Rapa nui Sophora thrives in bright light and direct sun — see other bright-light plants.

More Sophora Species

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

Sources

  • Scientific name & taxonomy: Sophora rapaensis H.St.John, family Fabaceae (first published in Bot. Jahrb. Syst. 106: 120 (1985)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Rapa nui Sophora, 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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