Orthosia mollis Plant Care

Orthosia mollis (Orthosia mollis) belongs to the Apocynaceae family within the Orthosia genus. Orthosia mollis is native to Santiago, Valparaíso, Patagonia, Estrecho de Magallanes, Córdoba, La Rioja, Buenos Aires, Tandil, Balcarce, Río Negro, Comodoro Rivadavia, Esquel, Neuquén, Mendoza and Catamarca in Argentina.

Orthosia mollis displays a compact, bushy shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 2.5 ft. Orthosia mollis produces small, star-shaped flowers in clusters.

Leaf size: approximately 4 inches.

Water a young or newly planted Orthosia mollis 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.

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

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

Well-draining, sandy soil mix with added perlite for improved drainage. Good drainage is essential for Orthosia mollis to prevent waterlogging, which leads to root rot and fungal issues.

Feed Orthosia mollis 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 added perlite for improved drainage. Avoid low spots where water collects after rain.

Orthosia mollis is suited to USDA Zone 8a – 10b.

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.

Orthosia mollis can spread to about 3 ft (0.8 m) and reach about 3 ft (1 m) tall. Space plants about 3 ft (0.8 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 Orthosia mollis 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.

Orthosia mollis is hardy down to USDA zone 8a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

Orthosia mollis can be propagated through stem cuttings, air layering. Similar propagation techniques also apply to orthosia scoparia plant care, which shares the same genus.

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

Orthosia mollis is susceptible to spider mites, mealybugs, 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.

Orthosia mollis grows outdoors in USDA Zone 8a – 10b. It survives winters down to planting zone 8a. Orthosia mollis is native to Santiago, Valparaíso, Patagonia, Estrecho de Magallanes, Córdoba, La Rioja, Buenos Aires, Tandil, Balcarce, Río Negro, Comodoro Rivadavia, Esquel, Neuquén, Mendoza and Catamarca in Argentina.