Cleomella plocasperma Plant Care

Cleomella plocasperma S.Watson

Updated · Sources · How we source care data

Cleomella plocasperma is a species of flowering plant in the cleome family known by the common name twisted cleomella and alkali stinkweed. It is native to the Great Basin and Mojave Desert in the western United States, where it grows mainly in wet, alkaline soils such as those around hot springs.

Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–85°F

Humidity

30–60%

At a glance

How do you care for Cleomella plocasperma?

Plant Cleomella plocasperma in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–14 days until it is established. It tolerates temperatures of 50–85°F (10–29°C). Fertilize it every 6 months during the growing season.

Where Is the Cleomella plocasperma Native To?

Native range1 country

What Is the Cleomella plocasperma?

Cleomella plocasperma (Cleomella plocasperma) belongs to the Cleomaceae family within the Cleomella genus. Cleomella plocasperma is native to the Great Basin and Mojave Desert in the western United States.

Cleomella plocasperma displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Cleomella plocasperma produces small, white to pale yellow flowers in clusters.

Leaf size: approximately 2 inches.

How Often Should You Water a Cleomella plocasperma?

Water a young or newly planted Cleomella plocasperma 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 Cleomella plocasperma Need?

Cleomella plocasperma thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Cleomella plocasperma Prefer?

Cleomella plocasperma tolerates temperatures of 50–85°F. Cleomella plocasperma prefers humidity levels of 30–60%.

Temperature

50–85°F

Humidity

30–60%

What Soil Mix Works Best for a Cleomella plocasperma?

Sandy, well-draining soil mix with gravel and gypsum. Good drainage is essential for Cleomella plocasperma to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Cleomella plocasperma?

Feed Cleomella plocasperma 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 Cleomella plocasperma?

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

Cleomella plocasperma 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 Cleomella plocasperma?

Cleomella plocasperma 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 Cleomella plocasperma?

Prune Cleomella plocasperma 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 Cleomella plocasperma in Winter?

Cleomella plocasperma 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 Cleomella plocasperma?

Cleomella plocasperma can be propagated through seeds, division of offsets. Similar propagation techniques also apply to narrowleaf cleomella plant care, which shares the same genus.

Is the Cleomella plocasperma Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Cleomella plocasperma, 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 Cleomella plocasperma?

Cleomella plocasperma 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 Cleomella plocasperma Need?

Cleomella plocasperma grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Cleomella plocasperma is native to the Great Basin and Mojave Desert in the western United States. In cooler regions, grow Cleomella plocasperma as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Cleomella plocasperma 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 Cleomella genus — compare its care with other Cleomella species on PlantoScan.

Cleomella is part of the Cleomaceae plant family — browse all Cleomaceae genera and species.

Cleomella plocasperma thrives in bright light and direct sun — see other bright-light plants.

More Cleomella Species

Other Cleomella species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Cleomella plocasperma S.Watson, family Cleomaceae (first published in Botany [Fortieth Parallel] : 33 (1871)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Cleomella plocasperma, 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.

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