Grisollea thomassetii Plant Care

Grisollea thomassetii (Grisollea thomassetii) belongs to the Stemonuraceae family within the Grisollea genus. Grisollea thomassetii is native to Seychelles.

Grisollea thomassetii displays a compact, bushy shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 2 ft. Grisollea thomassetii produces small, fragrant white flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Grisollea thomassetii 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.

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

Grisollea thomassetii tolerates temperatures of 65–75°F. Grisollea thomassetii prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining loamy soil with added peat moss and perlite. Good drainage is essential for Grisollea thomassetii to prevent waterlogging, which leads to root rot and fungal issues.

Feed Grisollea thomassetii 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 loamy soil with added peat moss and perlite. Avoid low spots where water collects after rain.

Grisollea thomassetii 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.

Grisollea thomassetii 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 Grisollea thomassetii 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.

Grisollea thomassetii 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.

Grisollea thomassetii can be propagated through leaf cuttings, division, air layering.

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

Grisollea thomassetii is susceptible to spider mites, scale insects, mealybugs. 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.

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