Malagasia alticola Plant Care

Malagasia alticola (Malagasia alticola) belongs to the Proteaceae family within the Malagasia genus. Malagasia alticola is native to Madagascar.

Malagasia alticola displays a tall, upright tree growth habit, reaching up to 15 ft tall with a spread of approximately 8 ft. Malagasia alticola produces showy clusters of small, fragrant white flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Malagasia alticola every 7–10 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.

Malagasia alticola thrives in full sun to partial shade.

Malagasia alticola tolerates temperatures of 60–80°F. Malagasia alticola prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining acidic soil mix with added peat moss and perlite. Good drainage is essential for Malagasia alticola to prevent waterlogging, which leads to root rot and fungal issues.

Feed Malagasia alticola 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 acidic soil mix with added peat moss and perlite. Avoid low spots where water collects after rain.

Malagasia alticola is suited to USDA Zone 13a.

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.

Malagasia alticola can spread to about 8 ft (2.4 m) and reach about 15 ft (5 m) tall. Space plants about 8 ft (2.4 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 Malagasia alticola 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.

Malagasia alticola 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.

Malagasia alticola can be propagated through seeds, cuttings.

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

Malagasia alticola is susceptible to spider mites, scale insects, mealybugs. 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.

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