Allium viridulum Plant Care

Allium viridulum Ledeb.

Updated · Sources · How we source care data

Allium delicatulum is a Eurasian species of onion native to European Russia, Western Siberia, Xinjiang, and Kazakhstan. It grows in open grasslands and deserts.

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Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–75°F

Humidity

40–60%

At a glance

How do you care for Allium viridulum?

Water Allium viridulum every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–75°F (10–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.

Where Is the Allium viridulum Native To?

Native range3 countries

What Is the Allium viridulum?

Allium viridulum (Allium viridulum) belongs to the Amaryllidaceae family within the Allium genus. Allium viridulum is native to European Russia, Western Siberia, Xinjiang, and Kazakhstan.

Allium viridulum displays an upright, clumping perennial growth habit, reaching up to 2 ft tall with a spread of approximately 0.5 ft. Allium viridulum produces spherical clusters of small purple, white, or pink flowers.

Leaf size: approximately 12 inches.

How Often Should You Water a Allium viridulum?

Allium viridulum requires watering every 7–14 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 7–14 days

Let soil partially dry between waterings

What Light Does the Allium viridulum Need?

Allium viridulum thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Allium viridulum Prefer?

Allium viridulum grows best at temperatures of 50–75°F. Allium viridulum prefers humidity levels of 40–60%.

Temperature

50–75°F

Humidity

40–60%

What Soil Mix Works Best for a Allium viridulum?

Well-draining sandy loam with added compost for nutrients. Good drainage is essential for Allium viridulum to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Allium viridulum?

Feed Allium viridulum 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 Allium viridulum?

Divide and repot every 3-4 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 Allium viridulum?

Allium viridulum can be propagated through division of bulbs, offsets, seeds. Similar propagation techniques also apply to onion plant care, which shares the same genus.

Is the Allium viridulum Toxic to Pets and Children?

Toxic (caution)

Reported as toxic in our plant data. Not verified by the ASPCA.

Toxic to dogs, cats, and horses if ingested

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 Allium viridulum?

Allium viridulum is susceptible to onion thrips, onion maggots. 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 Allium viridulum Need?

Allium viridulum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Allium viridulum is native to European Russia, Western Siberia, Xinjiang, and Kazakhstan. In cooler regions, grow Allium viridulum as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Allium viridulum 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 Allium genus — compare its care with other Allium species on PlantoScan.

Allium is part of the Amaryllidaceae plant family — browse all Amaryllidaceae genera and species.

Allium viridulum thrives in bright light and direct sun — see other bright-light plants.

More Allium Species

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

Sources

  • Scientific name & taxonomy: Allium viridulum Ledeb., family Amaryllidaceae (first published in Fl. Altaic. 2: 20 (1830)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Allium viridulum is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. 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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