Serianthes nelsonii Plant Care

Serianthes nelsonii (Serianthes nelsonii) belongs to the Fabaceae family within the Serianthes genus. Serianthes nelsonii is native to Guam and Rota of the Mariana Islands.

Serianthes nelsonii displays a tall canopy tree growth habit, reaching up to 60 ft tall with a spread of approximately 30 ft. Serianthes nelsonii produces showy clusters of white or pink flowers.

Leaf size: approximately 8 inches.

Water a young or newly planted Serianthes nelsonii 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.

Serianthes nelsonii thrives in full sun to partial shade.

Serianthes nelsonii tolerates temperatures of 65–85°F. Serianthes nelsonii prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Serianthes nelsonii 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.

The PlantoScan app can remind you when to water and when to fertilize each plant.

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.

Serianthes nelsonii is suited to USDA Zone 12a – 13b.

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.

Serianthes nelsonii can spread to about 30 ft (9.1 m) and reach about 60 ft (18 m) tall. Space plants about 30 ft (9.1 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.

Prune Serianthes nelsonii 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.

Serianthes nelsonii 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.

Serianthes nelsonii can be propagated through seeds, grafting. Similar propagation techniques also apply to serianthes calycina plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Serianthes nelsonii 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.

Serianthes nelsonii grows outdoors in USDA Zone 12a – 13b. It survives winters down to planting zone 12a. Serianthes nelsonii is native to Guam and Rota of the Mariana Islands. In cooler regions, grow Serianthes nelsonii as a houseplant or bring it indoors before the first frost.