American Chaffseed Plant Care

American Chaffseed (Schwalbea americana) belongs to the Orobanchaceae family within the Schwalbea genus. American Chaffseed is native to the southeastern and Atlantic coastal United States. American Chaffseed is also known as Chaffseed.

American Chaffseed displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. American Chaffseed produces small tubular flowers in shades of purple and white.

Leaf size: approximately 2 inches.

Water a young or newly planted American Chaffseed 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.

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

Schwalbea americana tolerates temperatures of 60–75°F. American Chaffseed prefers humidity levels of 40–60%.

Well-draining sandy soil with high organic content. Good drainage is essential for American Chaffseed to prevent waterlogging, which leads to root rot and fungal issues.

Feed American Chaffseed every 8 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 sandy soil with high organic content. Avoid low spots where water collects after rain.

American Chaffseed is suited to USDA Zone 13a.

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.

American Chaffseed 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 American Chaffseed 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.

American Chaffseed 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.

American Chaffseed can be propagated through seeds, division of rhizomes.

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American Chaffseed is susceptible to aphids, spider mites, whiteflies. 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.

American Chaffseed grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. American Chaffseed is native to the southeastern and Atlantic coastal United States. In cooler regions, grow American Chaffseed as a houseplant or bring it indoors before the first frost.