Linearleaf croton Plant Care

Linearleaf croton (Croton linearis) belongs to the Euphorbiaceae family within the Croton genus. Linearleaf croton is native to the Caribbean and south Florida.

Linearleaf croton displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Linearleaf croton produces inconspicuous flowers; grown for its colorful, variegated leaves.

Leaf size: approximately 6 inches.

Water a young or newly planted Linearleaf croton 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.

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

Croton linearis tolerates temperatures of 65–85°F. Linearleaf croton prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, fertile soil with added perlite for improved drainage. Good drainage is essential for Linearleaf croton to prevent waterlogging, which leads to root rot and fungal issues.

Feed Linearleaf croton every 4 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, fertile soil with added perlite for improved drainage. Avoid low spots where water collects after rain.

Linearleaf croton is suited to USDA Zone 13b – 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.

Linearleaf croton 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 Linearleaf croton 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.

Linearleaf croton 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.

Linearleaf croton can be propagated through stem cuttings, air layering. Similar propagation techniques also apply to hance's croton plant care, which shares the same genus.

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Linearleaf croton 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.

Linearleaf croton grows outdoors in USDA Zone 13b – 11b. It survives winters down to planting zone 13b. Linearleaf croton is native to the Caribbean and south Florida. In cooler regions, grow Linearleaf croton as a houseplant or bring it indoors before the first frost.