Sweetscent Pluchea (Pluchea odorata)

Photo: Anthony Valois and the National Park ServicePublic domainvia Wikimedia Commons

Sweetscent Pluchea Plant Care

Pluchea odorata (L.) Cass.

Updated · Sources · How we source care data

Pluchea odorata is a species of flowering plant in the aster family, Asteraceae. Common names include sweetscent, saltmarsh fleabane and shrubby camphorweed.

🌱Herbs🌼Perennials🌻Annuals
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

65–85°F

Humidity

40–70%

At a glance

How do you care for Sweetscent Pluchea?

Plant Sweetscent Pluchea in full sun to partial shade (USDA zones 13b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 65–85°F (18–29°C). Fertilize it every 6 months during the growing season.

What Is the Sweetscent Pluchea?

Sweetscent Pluchea (Pluchea odorata) belongs to the Asteraceae family within the Pluchea genus. Sweetscent Pluchea is also known as Stinkweed, Saltmarsh Fleabane, Salty Pigweed.

Sweetscent Pluchea displays an upright, bushy shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Sweetscent Pluchea produces small white or pink clustered flowers.

Leaf size: approximately 4 inches.

How Often Should You Water a Sweetscent Pluchea?

Water a young or newly planted Sweetscent Pluchea 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 Sweetscent Pluchea Need?

Sweetscent Pluchea thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Sweetscent Pluchea Prefer?

Pluchea odorata tolerates temperatures of 65–85°F. Sweetscent Pluchea prefers humidity levels of 40–70%.

Temperature

65–85°F

Humidity

40–70%

What Soil Mix Works Best for a Sweetscent Pluchea?

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

How Often Should You Fertilize a Sweetscent Pluchea?

Feed Sweetscent Pluchea 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 Sweetscent Pluchea?

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

Sweetscent Pluchea is suited to USDA Zone 13b.

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 Sweetscent Pluchea?

Sweetscent Pluchea can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 Sweetscent Pluchea?

Prune Sweetscent Pluchea 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 Sweetscent Pluchea in Winter?

Sweetscent Pluchea 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 Sweetscent Pluchea?

Sweetscent Pluchea can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to indian pluchea plant care, which shares the same genus.

Is the Sweetscent Pluchea Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Sweetscent Pluchea, 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 Sweetscent Pluchea?

Sweetscent Pluchea 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 Sweetscent Pluchea Need?

Sweetscent Pluchea grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow Sweetscent Pluchea as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13b

Keep exploring plants

Sweetscent Pluchea 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 Pluchea genus — compare its care with other Pluchea species on PlantoScan.

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

Sweetscent Pluchea 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: Pluchea odorata (L.) Cass., family Asteraceae (first published in Dict. Sci. Nat., ed. 2. 42: 3 (1826)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Sweetscent Pluchea, 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: Anthony Valois and the National Park Service, Public domain, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 13b, 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.

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