Largeflower twinberry Plant Care

Largeflower twinberry (Boschia grandiflora) belongs to the Malvaceae family within the Boschia genus. Largeflower twinberry is native to the island of Borneo. Largeflower twinberry is also known as Twinberry honeysuckle.

Largeflower twinberry displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Largeflower twinberry produces small white flowers in clusters.

Leaf size: approximately 2 inches.

Water a young or newly planted Largeflower twinberry 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.

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

Boschia grandiflora tolerates temperatures of 60–75°F. Largeflower twinberry prefers humidity levels of 40–60%.

Well-draining sandy soil mix with high organic content. Good drainage is essential for Largeflower twinberry to prevent waterlogging, which leads to root rot and fungal issues.

Feed Largeflower twinberry 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 well-draining sandy soil mix with high organic content. Avoid low spots where water collects after rain.

Largeflower twinberry is suited to USDA Zone 11b – 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.

Largeflower twinberry can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 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 Largeflower twinberry 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.

Largeflower twinberry 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.

Largeflower twinberry can be propagated through seeds, division of offsets. Similar propagation techniques also apply to boschia griffithii plant care, which shares the same genus.

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

Largeflower twinberry is susceptible to mealybugs, 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.

Largeflower twinberry grows outdoors in USDA Zone 11b – 12b. It survives winters down to planting zone 11b. Largeflower twinberry is native to the island of Borneo. In cooler regions, grow Largeflower twinberry as a houseplant or bring it indoors before the first frost.