Holigarna grahamii Plant Care

Holigarna grahamii (Holigarna grahamii) belongs to the Anacardiaceae family within the Holigarna genus. Holigarna grahamii is native to western India.

Holigarna grahamii displays a tall tree, spreading canopy growth habit, reaching up to 30 ft tall with a spread of approximately 20 ft. Holigarna grahamii produces small greenish-yellow flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Holigarna grahamii 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.

Holigarna grahamii thrives in full sun to partial shade.

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

Well-draining loamy soil with added organic matter for moisture retention. Good drainage is essential for Holigarna grahamii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Holigarna grahamii 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 organic matter for moisture retention. Avoid low spots where water collects after rain.

Holigarna grahamii is suited to USDA Zone 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.

Holigarna grahamii 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.

Prune Holigarna grahamii 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.

Holigarna grahamii 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.

Holigarna grahamii can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to holigarna arnottiana plant care, which shares the same genus.

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

Holigarna grahamii is susceptible to aphids, scale insects, caterpillars. 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.

Holigarna grahamii grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Holigarna grahamii is native to western India. In cooler regions, grow Holigarna grahamii as a houseplant or bring it indoors before the first frost.