Variable False Eranthemum Plant Care

Variable False Eranthemum (Pseuderanthemum variabile) belongs to the Acanthaceae family within the Pseuderanthemum genus. Variable False Eranthemum is native to Australia, Papua New Guinea and New Caledonia. Variable False Eranthemum is also known as Australian Wild Geranium.

Variable False Eranthemum displays a compact, bushy shrub growth habit, reaching up to 2 ft tall with a spread of approximately 2 ft. Variable False Eranthemum produces small tubular flowers in various colors.

Leaf size: approximately 4 inches.

Water a young or newly planted Variable False Eranthemum every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Variable False Eranthemum thrives in bright indirect light. Avoid placing Variable False Eranthemum in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Pseuderanthemum variabile tolerates temperatures of 65–80°F. Variable False Eranthemum prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, fertile soil with added perlite for improved drainage. Good drainage is essential for Variable False Eranthemum to prevent waterlogging, which leads to root rot and fungal issues.

Feed Variable False Eranthemum every 4 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs 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 bright indirect light and well-draining, fertile soil with added perlite for improved drainage. Avoid low spots where water collects after rain.

Variable False Eranthemum is suited to USDA Zone 10a – 12b.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Variable False Eranthemum can spread to about 2 ft (0.6 m) and reach about 2 ft (1 m) tall. Space plants about 2 ft (0.6 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 plant spacing calculator.

Prune Variable False Eranthemum 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 shrub in one year.

Variable False Eranthemum is frost-tender (hardy to USDA zone 10). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Variable False Eranthemum can be propagated through stem cuttings, division. Similar propagation techniques also apply to carruthers' false eranthemum plant care, which shares the same genus.

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

Variable False Eranthemum is susceptible to aphids, spider mites, whiteflies. 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.

Variable False Eranthemum grows outdoors in USDA Zone 10a – 12b. It survives winters down to planting zone 10a. Variable False Eranthemum is native to Australia, Papua New Guinea and New Caledonia. In cooler regions, grow Variable False Eranthemum as a houseplant or bring it indoors before the first frost.