Smooth Yellow False Foxglove Plant Care
Aureolaria laevigata (Raf.) Raf.
Updated · Sources · How we source care data
Aureolaria levigata, commonly known as entireleaf yellow false foxglove or Appalachian oak-leech, is a species of flowering plant in the family Orobanchaceae. It is native to much of the Appalachian Mountains and surrounding areas in the eastern United States.
Every 7–14 days
Partial shade to full shade
50–75°F
40–70%
At a glance
How do you care for Smooth Yellow False Foxglove?
Plant Smooth Yellow False Foxglove in partial shade to full shade (USDA zones 12a) and water a young shrub every 7–14 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 8 months during the growing season.
Where Is the Smooth Yellow False Foxglove Native To?
What Is the Smooth Yellow False Foxglove?
Smooth Yellow False Foxglove (Aureolaria laevigata) belongs to the Orobanchaceae family within the Aureolaria genus. Smooth Yellow False Foxglove is native to much of the Appalachian Mountains and surrounding areas in the eastern United States. Smooth Yellow False Foxglove is also known as Yellow False Foxglove.
Smooth Yellow False Foxglove displays a low spreading groundcover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1.5 ft. Smooth Yellow False Foxglove produces small tubular flowers in shades of yellow or white.
Leaf size: approximately 2 inches.
How Often Should You Water a Smooth Yellow False Foxglove?
Water a young or newly planted Smooth Yellow False Foxglove every 7–14 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.
Watering Frequency
Every 7–14 days
Until established; then in dry spells
What Light Does the Smooth Yellow False Foxglove Need?
Smooth Yellow False Foxglove thrives in partial shade to full shade. The optimal light range is 50–200 lux. Avoid placing Smooth Yellow False Foxglove in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial shade to full shade
50–200 lux
What Temperature and Humidity Does the Smooth Yellow False Foxglove Prefer?
Aureolaria laevigata tolerates temperatures of 50–75°F. Smooth Yellow False Foxglove prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Smooth Yellow False Foxglove?
Well-draining sandy soil with high organic content. Good drainage is essential for Smooth Yellow False Foxglove to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Smooth Yellow False Foxglove?
Feed Smooth Yellow False Foxglove 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.
Fertilizing
Every 8 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Smooth Yellow False Foxglove?
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.
Smooth Yellow False Foxglove 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.
How Far Apart Should You Plant a Smooth Yellow False Foxglove?
Smooth Yellow False Foxglove can spread to about 2 ft (0.5 m) and reach about 1 ft (0 m) tall. Space plants about 2 ft (0.5 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.
How Do You Prune a Smooth Yellow False Foxglove?
Prune Smooth Yellow False Foxglove 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.
How Do You Care for a Smooth Yellow False Foxglove in Winter?
Smooth Yellow False Foxglove 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.
How Do You Propagate a Smooth Yellow False Foxglove?
Smooth Yellow False Foxglove can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to yellow false foxglove plant care, which shares the same genus.
Is the Smooth Yellow False Foxglove Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Smooth Yellow False Foxglove, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Smooth Yellow False Foxglove?
Smooth Yellow False Foxglove is susceptible to not highly susceptible to pests. 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.
What USDA Hardiness Zone Does the Smooth Yellow False Foxglove Need?
Smooth Yellow False Foxglove grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Smooth Yellow False Foxglove is native to much of the Appalachian Mountains and surrounding areas in the eastern United States. In cooler regions, grow Smooth Yellow False Foxglove as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Smooth Yellow False Foxglove is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Aureolaria genus — compare its care with other Aureolaria species on PlantoScan.
Aureolaria is part of the Orobanchaceae plant family — browse all Orobanchaceae genera and species.
Smooth Yellow False Foxglove copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Aureolaria laevigata (Raf.) Raf., family Orobanchaceae (first published in New Fl. 2: 58 (1837)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Smooth Yellow False Foxglove, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
