Thottea grandiflora Plant Care

Thottea grandiflora (Thottea grandiflora) belongs to the Aristolochiaceae family within the Thottea genus. Thottea grandiflora is native to Myanmar, Thailand, Peninsular Malaysia, and Singapore.

Thottea grandiflora displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Thottea grandiflora produces small, inconspicuous flowers.

Leaf size: approximately 6 inches.

Water a young or newly planted Thottea grandiflora 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.

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

Thottea grandiflora tolerates temperatures of 65–80°F. Thottea grandiflora prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

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

Feed Thottea grandiflora 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 rich, well-draining soil with high organic content. Avoid low spots where water collects after rain.

Thottea grandiflora 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.

Thottea grandiflora 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 Thottea grandiflora 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.

Thottea grandiflora 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.

Thottea grandiflora can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to thottea praetermissa plant care, which shares the same genus.

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Thottea grandiflora 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.

Thottea grandiflora grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Thottea grandiflora is native to Myanmar, Thailand, Peninsular Malaysia, and Singapore. In cooler regions, grow Thottea grandiflora as a houseplant or bring it indoors before the first frost.