Pterothamnus centennii Plant Care

Pterothamnus centennii (Pterothamnus centennii) belongs to the Dipsacaceae family within the Pterothamnus genus. Pterothamnus centennii is native to the Tsetsera Plateau in the Eastern Highlands of Mozambique.

Pterothamnus centennii displays a compact, spreading shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 3 ft. Pterothamnus centennii produces small, tubular flowers in shades of pink and purple.

Leaf size: approximately 4 inches.

Water a young or newly planted Pterothamnus centennii 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.

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

Pterothamnus centennii tolerates temperatures of 60–75°F. Pterothamnus centennii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, slightly acidic soil with added organic matter. Good drainage is essential for Pterothamnus centennii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Pterothamnus centennii 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, slightly acidic soil with added organic matter. Avoid low spots where water collects after rain.

Pterothamnus centennii is suited to USDA Zone 13a.

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.

Pterothamnus centennii can spread to about 3 ft (0.9 m) and reach about 3 ft (1 m) tall. Space plants about 3 ft (0.9 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 Pterothamnus centennii 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.

Pterothamnus centennii 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.

Pterothamnus centennii can be propagated through seeds, stem cuttings.

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

Pterothamnus centennii is susceptible to aphids, 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.

Pterothamnus centennii grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Pterothamnus centennii is native to the Tsetsera Plateau in the Eastern Highlands of Mozambique. In cooler regions, grow Pterothamnus centennii as a houseplant or bring it indoors before the first frost.