Celandine Poppy Plant Care

Celandine Poppy (Stylophorum diphyllum) belongs to the Papaveraceae family within the Stylophorum genus. Celandine Poppy is native to North America. Celandine Poppy is also known as Wood Poppy, Yellow Poppy.

Celandine Poppy displays a low rosette, clumping growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Celandine Poppy produces bright yellow, cup-shaped flowers.

Leaf size: approximately 4 inches.

Water a young or newly planted Celandine Poppy every 4–7 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.

Celandine Poppy thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Celandine Poppy in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Stylophorum diphyllum tolerates temperatures of 50–75°F. Celandine Poppy prefers humidity levels of 40–60%.

Moist, well-draining soil rich in organic matter. Good drainage is essential for Celandine Poppy to prevent waterlogging, which leads to root rot and fungal issues.

Feed Celandine Poppy 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 partial to full shade and moist, well-draining soil rich in organic matter. Avoid low spots where water collects after rain.

Celandine Poppy is suited to USDA Zone 12a.

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.

Celandine Poppy can spread to about 1 ft (0.3 m) and reach about 2 ft (0 m) tall. Space plants about 1 ft (0.3 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 Celandine Poppy 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.

Celandine Poppy is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Celandine Poppy can be propagated through seeds. Similar propagation techniques also apply to yellow poppy plant care, which shares the same genus.

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

Celandine Poppy is susceptible to slugs, snails, aphids. 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.

Celandine Poppy grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Celandine Poppy is native to North America. In cooler regions, grow Celandine Poppy as a houseplant or bring it indoors before the first frost.