Grandidier's Hook Vine Plant Care

Grandidier's Hook Vine (Uncarina grandidieri) belongs to the Pedaliaceae family within the Uncarina genus. Grandidier's Hook Vine is native to South Madagascar. Grandidier's Hook Vine is also known as Devil's Claw.

Grandidier's Hook Vine displays a low shrub, spreading habit growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. Grandidier's Hook Vine produces tubular yellow flowers with purple markings.

Leaf size: approximately 4 inches.

Water a young or newly planted Grandidier's Hook Vine every 7–14 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.

Grandidier's Hook Vine thrives in full sun to partial shade.

Uncarina grandidieri tolerates temperatures of 65–85°F. Grandidier's Hook Vine prefers humidity levels of 40–60%.

Well-draining sandy soil mix with added perlite for improved drainage. Good drainage is essential for Grandidier's Hook Vine to prevent waterlogging, which leads to root rot and fungal issues.

Feed Grandidier's Hook Vine 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 soil mix with added perlite for improved drainage. Avoid low spots where water collects after rain.

Grandidier's Hook Vine is suited to USDA Zone 10b – 11b.

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.

Grandidier's Hook Vine can spread to about 3 ft (0.9 m) and reach about 2 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 Grandidier's Hook Vine 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.

Grandidier's Hook Vine is frost-tender (hardy to USDA zone 10). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Grandidier's Hook Vine can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to decary's uncarina plant care, which shares the same genus.

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

Grandidier's Hook Vine 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.

Grandidier's Hook Vine grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Grandidier's Hook Vine is native to South Madagascar. In cooler regions, grow Grandidier's Hook Vine as a houseplant or bring it indoors before the first frost.