Amellus villosus (Diplogon falcatum)

Photo: Matt Lavin from Bozeman, Montana, USACC BY-SA 2.0via Wikimedia Commonsresized / cropped

Amellus villosus Plant Care

Diplogon falcatum (Pursh) Kuntze

Updated · Sources · How we source care data

Heterotheca villosa, called the hairy goldenaster, is a species of flowering plant in the family Asteraceae found in central and western North America.

🌱Herbs🌼Perennials🌻Annuals
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

60–75°F

Humidity

40–60%

At a glance

How do you care for Amellus villosus?

Water Amellus villosus every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–75°F (16–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.

Where Is the Amellus villosus Native To?

Native range3 countries

What Is the Amellus villosus?

Amellus villosus (Diplogon falcatum) belongs to the Asteraceae family within the Diplogon genus. Amellus villosus is native to central and western North America. Amellus villosus is also known as Aster gracilentus, Chrysopsis mollis, Chrysopsis villosa.

Amellus villosus displays a clumping herbaceous perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Amellus villosus produces small daisy-like flowers in various colors.

Leaf size: approximately 4 inches.

How Often Should You Water a Amellus villosus?

Diplogon falcatum requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Amellus villosus Need?

Amellus villosus thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Amellus villosus Prefer?

Diplogon falcatum grows best at temperatures of 60–75°F. Amellus villosus prefers humidity levels of 40–60%.

Temperature

60–75°F

Humidity

40–60%

What Soil Mix Works Best for a Amellus villosus?

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Amellus villosus to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Amellus villosus?

Feed Amellus villosus 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.

Fertilizing

Every 6 months

During the growing season

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

How Do You Repot a Amellus villosus?

Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Amellus villosus?

Amellus villosus can be propagated through seeds, division of root ball.

Is the Amellus villosus Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Amellus villosus, 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 Amellus villosus?

Amellus villosus is susceptible to aphids, whiteflies, spider mites. 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 Amellus villosus Need?

Amellus villosus grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Amellus villosus is native to central and western North America. In cooler regions, grow Amellus villosus as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Amellus villosus 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 Diplogon genus (family Asteraceae) — search all Diplogon species in the plant lookup.

Amellus villosus thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Diplogon falcatum (Pursh) Kuntze, family Asteraceae (first published in Revis. Gen. Pl. 1: 334 (1891)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Amellus villosus, 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.
  • Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 13a, 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.

PlantoScan app icon

Identify Plants Like the
Amellus villosus Instantly

Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.

Download on the App StoreGet it on Google Play

Free

to download

iOS & Android

platforms

Light & dark

mode

100,000+

species