Prickly Xylocalyx Plant Care

Prickly Xylocalyx (Xylocalyx aculeolatus) belongs to the Orobanchaceae family within the Xylocalyx genus. Prickly Xylocalyx is native to the island of Socotra in Yemen. Prickly Xylocalyx is also known as Thorny Woodstar.

Prickly Xylocalyx displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Prickly Xylocalyx produces small tubular flowers in shades of purple or pink.

Leaf size: approximately 4 inches.

Water a young or newly planted Prickly Xylocalyx 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.

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

Xylocalyx aculeolatus tolerates temperatures of 65–75°F. Prickly Xylocalyx prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

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

Prickly Xylocalyx 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.

Prickly Xylocalyx can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 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 plant spacing calculator.

Prune Prickly Xylocalyx 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.

Prickly Xylocalyx 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.

Prickly Xylocalyx can be propagated through seeds, division of offsets. Similar propagation techniques also apply to australian finger lime plant care, which shares the same genus.

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

Prickly Xylocalyx is susceptible to aphids, spider mites, 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.

Prickly Xylocalyx grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Prickly Xylocalyx is native to the island of Socotra in Yemen. In cooler regions, grow Prickly Xylocalyx as a houseplant or bring it indoors before the first frost.