Photo: Conrad AltmannCC BY 4.0via iNaturalistresized / cropped
Black cumin Plant Care
Nigella sativa L.
Updated · Sources · How we source care data
This plant is easily recognizable by its delicate feathery leaves and pale purple or blue flowers. Originating from the Mediterranean region, Nigella sativa is highly sought after by plant collectors for its historical medicinal uses and unique appearance.
Every 7–10 days
Full sun to partial shade
60–75°F
40–60%
At a glance
How do you care for Black cumin?
Water Black cumin 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 4 months during the growing season.
Where Is the Black cumin Native To?
What Is the Black cumin?
Black cumin (Nigella sativa) belongs to the Ranunculaceae family within the Nigella genus. Black cumin is native to western Asia, and eastern Europe. Black cumin is also known as Kalonji, Fennel flower, Love-in-a-mist.
Black cumin displays an upright, branching herb growth habit, reaching up to 1.5 ft tall with a spread of approximately 0.5 ft. Black cumin produces delicate, star-shaped flowers in shades of blue, pink, or white.
Leaf size: approximately 2 inches.
How Often Should You Water a Black cumin?
Nigella sativa 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 Black cumin Need?
Black cumin thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Black cumin Prefer?
Nigella sativa grows best at temperatures of 60–75°F. Black cumin prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Black cumin?
Well-draining, sandy loam with added organic matter. Good drainage is essential for Black cumin to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Black cumin?
Feed Black cumin every 4 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 4 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 Black cumin?
Repot annually in 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 Black cumin?
Black cumin can be propagated through seeds. Similar propagation techniques also apply to field nigella plant care, which shares the same genus.
Is the Black cumin Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Black cumin, 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 Black cumin?
Black cumin 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 Black cumin Need?
Black cumin grows outdoors in USDA Zone 8a – 11b. It survives winters down to planting zone 8a. Black cumin is native to western Asia, and eastern Europe.
Hardiness Zone
Zone 8a – 11b
Keep exploring plants
Black cumin 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 Nigella genus — compare its care with other Nigella species on PlantoScan.
Nigella is part of the Ranunculaceae plant family — browse all Ranunculaceae genera and species.
Black cumin thrives in bright light and direct sun — see other bright-light plants.
More Nigella Species
Other Nigella species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Nigella sativa L., family Ranunculaceae (first published in Sp. Pl. : 584 (1753)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Black cumin, 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: Conrad Altmann, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 11b, estimated from the plant's typical growing conditions.
- 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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