Amazonian Starfish Plant Plant Care

Amazonian Starfish Plant (Pentagonia amazonica) belongs to the Rubiaceae family within the Pentagonia genus. Amazonian Starfish Plant is native to Brazil, Peru, Colombia. Amazonian Starfish Plant is also known as Amazon Lily.

Amazonian Starfish Plant displays a compact, mounding shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 3 ft. Amazonian Starfish Plant produces small, fragrant white flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Amazonian Starfish Plant 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.

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

Pentagonia amazonica tolerates temperatures of 65–75°F. Amazonian Starfish Plant prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Rich, well-draining soil with added organic matter like compost or peat moss. Good drainage is essential for Amazonian Starfish Plant to prevent waterlogging, which leads to root rot and fungal issues.

Feed Amazonian Starfish Plant 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 rich, well-draining soil with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.

Amazonian Starfish Plant is suited to USDA Zone 11a – 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.

Amazonian Starfish Plant 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 Amazonian Starfish Plant 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.

Amazonian Starfish Plant is frost-tender (hardy to USDA zone 11). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Amazonian Starfish Plant can be propagated through softwood cuttings, air layering. Similar propagation techniques also apply to pentagonia gomez-lauritoi plant care, which shares the same genus.

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

Amazonian Starfish Plant 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.

Amazonian Starfish Plant grows outdoors in USDA Zone 11a – 12b. It survives winters down to planting zone 11a. Amazonian Starfish Plant is native to Brazil, Peru, Colombia. In cooler regions, grow Amazonian Starfish Plant as a houseplant or bring it indoors before the first frost.