Yellow Fumewort Plant Care

Yellow Fumewort (Capnoides sempervirens) belongs to the Papaveraceae family within the Capnoides genus. Yellow Fumewort is native to rocky woodland and burned or disturbed places in northern North America. Yellow Fumewort is also known as Northern Fumewort.

Yellow Fumewort displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Yellow Fumewort produces small, delicate white flowers in clusters.

Leaf size: approximately 2 inches.

Water a young or newly planted Yellow Fumewort every 3–5 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.

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

Capnoides sempervirens tolerates temperatures of 50–75°F. Yellow Fumewort prefers humidity levels of 40–70%.

Well-draining loamy soil with added organic matter for moisture retention. Good drainage is essential for Yellow Fumewort to prevent waterlogging, which leads to root rot and fungal issues.

Feed Yellow Fumewort 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 shade to full shade and well-draining loamy soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.

Yellow Fumewort 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.

Yellow Fumewort can spread to about 1 ft (0.3 m) and reach about 1 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 Yellow Fumewort 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.

Yellow Fumewort 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.

Yellow Fumewort can be propagated through seeds, division of rhizomes.

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

Yellow Fumewort is susceptible to aphids, slugs, snails. 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.

Yellow Fumewort grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Yellow Fumewort is native to rocky woodland and burned or disturbed places in northern North America. In cooler regions, grow Yellow Fumewort as a houseplant or bring it indoors before the first frost.