Hoary pea Plant Care

Hoary pea (Tephrosia adunca) belongs to the Fabaceae family within the Tephrosia genus. Hoary pea is native to Australia, New Zealand, Pacific Islands. Hoary pea is also known as Long-leaved hoary pea.

Hoary pea displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Hoary pea produces showy clusters of pink, purple, or white pea-like flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Hoary pea 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.

Hoary pea thrives in full sun to partial shade.

Tephrosia adunca tolerates temperatures of 60–85°F. Hoary pea prefers humidity levels of 40–70%.

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

Feed Hoary pea 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 well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.

Hoary pea 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.

Hoary pea 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 Hoary pea 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.

Hoary pea 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.

Hoary pea can be propagated through seeds, division of root ball. Similar propagation techniques also apply to hoary pea plant care, which shares the same genus.

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Hoary pea is susceptible to aphids, leafhoppers, 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.

Hoary pea grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Hoary pea is native to Australia, New Zealand, Pacific Islands. In cooler regions, grow Hoary pea as a houseplant or bring it indoors before the first frost.