Mann's Yellowwood Plant Care

Mann's Yellowwood (Afrocarpus mannii) belongs to the Podocarpaceae family within the Afrocarpus genus. Mann's Yellowwood is native to the Afromontane forests of São Tomé Island in the Gulf of Guinea, growing on Pico de São Tomé at altitudes of 1,300 m (4,300 ft) up to the summit at 2,024 m (6,640 ft).

Mann's Yellowwood displays a tall, conical tree growth habit, reaching up to 30 ft tall with a spread of approximately 15 ft. Mann's Yellowwood produces small, inconspicuous flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Mann's Yellowwood 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.

Mann's Yellowwood thrives in partial shade to full sun.

Afrocarpus mannii tolerates temperatures of 50–80°F. Mann's Yellowwood prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining soil with high organic content, such as a mix of peat moss, pine bark, and perlite. Good drainage is essential for Mann's Yellowwood to prevent waterlogging, which leads to root rot and fungal issues.

Feed Mann's Yellowwood every 8 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 partial shade to full sun and well-draining soil with high organic content, such as a mix of peat moss, pine bark, and perlite. Avoid low spots where water collects after rain.

Mann's Yellowwood 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.

Mann's Yellowwood can spread to about 15 ft (4.6 m) and reach about 30 ft (9 m) tall. Space plants about 15 ft (4.6 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 tree spacing calculator.

Prune Mann's Yellowwood 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.

Mann's Yellowwood 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.

Mann's Yellowwood can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to yellowwood plant care, which shares the same genus.

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Mann's Yellowwood is susceptible to spider mites, 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.

Mann's Yellowwood grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Mann's Yellowwood is native to the Afromontane forests of São Tomé Island in the Gulf of Guinea, growing on Pico de São Tomé at altitudes of 1,300 m (4,300 ft) up to the summit at 2,024 m (6,640 ft). In cooler regions, grow Mann's Yellowwood as a houseplant or bring it indoors before the first frost.