Osmia hexantha Plant Care

Osmia hexantha Sch.Bip.

Updated · Sources · How we source care data

Chromolaena hirsuta is a South American species of flowering shrub in the family Asteraceae. It is native to Brazil, Bolivia, Uruguay, and Argentina.

🌱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 Osmia hexantha?

Water Osmia hexantha 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 Osmia hexantha Native To?

Native range4 countries

What Is the Osmia hexantha?

Osmia hexantha (Osmia hexantha) belongs to the Asteraceae family within the Osmia genus. Osmia hexantha is native to Brazil, Bolivia, Uruguay, and Argentina.

Osmia hexantha displays a clumping perennial herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Osmia hexantha produces daisy-like flowers in various colors.

Leaf size: approximately 4 inches.

How Often Should You Water a Osmia hexantha?

Osmia hexantha 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 Osmia hexantha Need?

Osmia hexantha thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Osmia hexantha Prefer?

Osmia hexantha grows best at temperatures of 60–75°F. Osmia hexantha prefers humidity levels of 40–60%.

Temperature

60–75°F

Humidity

40–60%

What Soil Mix Works Best for a Osmia hexantha?

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

How Often Should You Fertilize a Osmia hexantha?

Feed Osmia hexantha 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 Osmia hexantha?

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 Osmia hexantha?

Osmia hexantha can be propagated through seeds, division of rhizomes.

Is the Osmia hexantha Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Osmia hexantha, 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 Osmia hexantha?

Osmia hexantha 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 Osmia hexantha Need?

Osmia hexantha grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Osmia hexantha is native to Brazil, Bolivia, Uruguay, and Argentina. In cooler regions, grow Osmia hexantha as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Osmia hexantha 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 Osmia genus (family Asteraceae) — search all Osmia species in the plant lookup.

Osmia hexantha 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: Osmia hexantha Sch.Bip., family Asteraceae (first published in Jahresber. Pollichia 22-24: 253 (1866)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Osmia hexantha, 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.

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