Mexacanthus mcvaughii Plant Care

Mexacanthus mcvaughii (Mexacanthus mcvaughii) belongs to the Acanthaceae family within the Mexacanthus genus. Mexacanthus mcvaughii is native to southwestern Mexico.

Mexacanthus mcvaughii displays a compact, bushy shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 2.5 ft. Mexacanthus mcvaughii produces showy tubular flowers in various colors.

Leaf size: approximately 6 inches.

Water a young or newly planted Mexacanthus mcvaughii 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.

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

Mexacanthus mcvaughii tolerates temperatures of 65–80°F. Mexacanthus mcvaughii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, rich potting mix with added perlite for aeration. Good drainage is essential for Mexacanthus mcvaughii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Mexacanthus mcvaughii every 6 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, rich potting mix with added perlite for aeration. Avoid low spots where water collects after rain.

Mexacanthus mcvaughii is suited to USDA Zone 13b.

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.

Mexacanthus mcvaughii can spread to about 3 ft (0.8 m) and reach about 3 ft (1 m) tall. Space plants about 3 ft (0.8 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 Mexacanthus mcvaughii 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.

Mexacanthus mcvaughii 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.

Mexacanthus mcvaughii can be propagated through stem cuttings, division.

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

Mexacanthus mcvaughii is susceptible to spider mites, aphids, 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.

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