Fontainea venosa Plant Care

Fontainea venosa (Fontainea venosa) belongs to the Euphorbiaceae family within the Fontainea genus. Fontainea venosa is native to southeastern Queensland, Australia, extending from Boyne Valley to Cedar Creek.

Fontainea venosa displays a small tree, spreading canopy growth habit, reaching up to 15 ft tall with a spread of approximately 10 ft. Fontainea venosa produces small greenish-yellow flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Fontainea venosa 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.

Fontainea venosa thrives in full sun to partial shade.

Fontainea venosa tolerates temperatures of 60–85°F. Fontainea venosa prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Fontainea venosa to prevent waterlogging, which leads to root rot and fungal issues.

Feed Fontainea venosa 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 sandy loam with added organic matter. Avoid low spots where water collects after rain.

Fontainea venosa 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.

Fontainea venosa can spread to about 10 ft (3 m) and reach about 15 ft (5 m) tall. Space plants about 10 ft (3 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 Fontainea venosa 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.

Fontainea venosa 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.

Fontainea venosa can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to fontainea australis plant care, which shares the same genus.

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Fontainea venosa is susceptible to aphids, scale insects, spider mites. 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.

Fontainea venosa grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Fontainea venosa is native to southeastern Queensland, Australia, extending from Boyne Valley to Cedar Creek. In cooler regions, grow Fontainea venosa as a houseplant or bring it indoors before the first frost.