Hawaiian pokeweed Plant Care

Hawaiian pokeweed (Phytolacca sandwicensis) belongs to the Phytolaccaceae family within the Phytolacca genus. Hawaiian pokeweed is native to the Hawaiian Islands.

Hawaiian pokeweed displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Hawaiian pokeweed produces small clusters of white or pink flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Hawaiian pokeweed 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.

Hawaiian pokeweed thrives in full sun to partial shade.

Phytolacca sandwicensis tolerates temperatures of 65–80°F. Hawaiian pokeweed prefers humidity levels of 40–60%.

Moist, well-draining soil with high organic content. Good drainage is essential for Hawaiian pokeweed to prevent waterlogging, which leads to root rot and fungal issues.

Feed Hawaiian pokeweed 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 full sun to partial shade and moist, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Hawaiian pokeweed 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.

Hawaiian pokeweed can spread to about 2 ft (0.6 m) and reach about 3 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 Hawaiian pokeweed 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.

Hawaiian pokeweed 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.

Hawaiian pokeweed can be propagated through seeds. Similar propagation techniques also apply to rivinoides pokeweed plant care, which shares the same genus.

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Hawaiian pokeweed is susceptible to aphids, spider mites, leaf miners. 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.

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