Large-leaved Ragwort Plant Care

Large-leaved Ragwort (Senecio crassissimus) belongs to the Asteraceae family within the Senecio genus. Large-leaved Ragwort is native to the island of Madagascar off the east coast of Africa.

Large-leaved Ragwort displays an upright, trailing, or clumping habit growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Large-leaved Ragwort produces small, daisy-like flowers in various colors.

Leaf size: approximately 3 inches.

Senecio crassissimus requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Large-leaved Ragwort thrives in bright indirect light to full sun. Avoid placing Large-leaved Ragwort in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Senecio crassissimus grows best at temperatures of 50–80°F. Large-leaved Ragwort prefers humidity levels of 40–60%.

Well-draining sandy soil mix with added perlite for extra drainage. Good drainage is essential for Large-leaved Ragwort to prevent waterlogging, which leads to root rot and fungal issues.

Feed Large-leaved Ragwort every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Repot every 1-2 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Large-leaved Ragwort can be propagated through stem cuttings, division, seeds. Similar propagation techniques also apply to adenotrichia amplexicaulis plant care, which shares the same genus.

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Large-leaved Ragwort is susceptible to aphids, spider mites, 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.

Large-leaved Ragwort grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Large-leaved Ragwort is native to the island of Madagascar off the east coast of Africa. In cooler regions, grow Large-leaved Ragwort as a houseplant or bring it indoors before the first frost.