Cudweed Plant Care

Pseudognaphalium cheiranthifolium (Lam.) Hilliard & B.L.Burtt

Updated · Sources · How we source care data

Pseudognaphalium cheiranthifolium, synonyms including Gnaphalium cheiranthifolium and Gnaphalium ecuadorense, is a species of flowering plant in the family Asteraceae. It is native to South America, from Colombia to southern Chile.

🌱Herbs🌼Perennials🌻Annuals
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

60–80°F

Humidity

40–60%

At a glance

How do you care for Cudweed?

Plant Cudweed in full sun to partial shade (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.

Where Is the Cudweed Native To?

Native range13 countries

What Is the Cudweed?

Cudweed (Pseudognaphalium cheiranthifolium) belongs to the Asteraceae family within the Pseudognaphalium genus. Cudweed is native to South America, from Colombia to southern Chile.

Cudweed displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Cudweed produces small yellow clustered flowers.

Leaf size: approximately 2 inches.

How Often Should You Water a Cudweed?

Water a young or newly planted Cudweed 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.

Watering Frequency

Every 7–10 days

Until established; then in dry spells

What Light Does the Cudweed Need?

Cudweed thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Cudweed Prefer?

Pseudognaphalium cheiranthifolium tolerates temperatures of 60–80°F. Cudweed prefers humidity levels of 40–60%.

Temperature

60–80°F

Humidity

40–60%

What Soil Mix Works Best for a Cudweed?

Well-draining sandy soil mix with added organic matter. Good drainage is essential for Cudweed to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Cudweed?

Feed Cudweed 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.

Fertilizing

Every 6 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 Cudweed?

Choose a spot with full sun to partial shade and well-draining sandy soil mix with added organic matter. Avoid low spots where water collects after rain.

Cudweed 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.

How Far Apart Should You Plant a Cudweed?

Cudweed 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.

How Do You Prune a Cudweed?

Prune Cudweed 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 Cudweed in Winter?

Cudweed 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.

How Do You Propagate a Cudweed?

Cudweed can be propagated through seeds, division of clumps. Similar propagation techniques also apply to affined cudweed plant care, which shares the same genus.

Is the Cudweed Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Cudweed, 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 Cudweed?

Cudweed 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.

What USDA Hardiness Zone Does the Cudweed Need?

Cudweed grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Cudweed is native to South America, from Colombia to southern Chile. In cooler regions, grow Cudweed as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Cudweed 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 Pseudognaphalium genus — compare its care with other Pseudognaphalium species on PlantoScan.

Pseudognaphalium is part of the Asteraceae plant family — browse all Asteraceae genera and species.

Cudweed 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: Pseudognaphalium cheiranthifolium (Lam.) Hilliard & B.L.Burtt, family Asteraceae (first published in Bot. J. Linn. Soc. 82(3): 205 (1981): (1981)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Cudweed, 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 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
Cudweed 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