Phalsa Plant Care

Phalsa (Grewia asiatica) belongs to the Malvaceae family within the Grewia genus. Phalsa is also known as Falsa.

Phalsa displays an upright, spreading shrub growth habit, reaching up to 6 ft tall with a spread of approximately 4 ft. Phalsa produces small, bell-shaped flowers in various colors.

Leaf size: approximately 3 inches.

Water a young or newly planted Phalsa every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Phalsa thrives in full sun to partial shade.

Grewia asiatica tolerates temperatures of 60–85°F. Phalsa prefers humidity levels of 40–70%.

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

Feed Phalsa every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees 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.

Phalsa is suited to USDA Zone 13a.

Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.

Phalsa can spread to about 4 ft (1.2 m) and reach about 6 ft (2 m) tall. Space plants about 4 ft (1.2 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 tree spacing calculator.

Prune Phalsa 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 tree in one year.

Phalsa 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.

Phalsa can be propagated through seeds, hardwood cuttings. Similar propagation techniques also apply to velvet grewia plant care, which shares the same genus.

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Phalsa 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.

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