Photo: Raja Sekhar ChimiralaCC BY 4.0via iNaturalistresized / cropped
Mustard Greens Plant Care
Brassica juncea (L.) Czern.
Updated · Sources · How we source care data
The Brassica juncea plant is easily identifiable by its deeply lobed, feathery leaves that branch out in all directions. Originating in Asia, this plant is highly sought after by collectors for its unique mustard flavor and its ability to add a spicy kick to dishes.
Every 3–7 days
Full sun to partial shade
60–75°F
50–70%
At a glance
How do you care for Mustard Greens?
Water Mustard Greens every 3–7 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 50–70% humidity. Fertilize it every 2 months during the growing season.
What Is the Mustard Greens?
Mustard Greens (Brassica juncea) belongs to the Brassicaceae family within the Brassica genus. Mustard Greens is native to India, China. Mustard Greens is also known as Indian Mustard, Leaf Mustard, Brown Mustard.
Mustard Greens displays a leafy, compact rosette growth habit, reaching up to 3 ft tall with a spread of approximately 1 ft. Mustard Greens produces small, four-petaled flowers in white, yellow, or purple.
How Often Should You Water a Mustard Greens?
Brassica juncea requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Mustard Greens Need?
Mustard Greens thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Mustard Greens Prefer?
Brassica juncea grows best at temperatures of 60–75°F. Mustard Greens prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
50–70%
What Soil Mix Works Best for a Mustard Greens?
Well-draining, fertile soil with high organic matter content. Good drainage is essential for Mustard Greens to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Mustard Greens?
Feed Mustard Greens every 2 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 2 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 Mustard Greens?
Repot annually 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 Mustard Greens?
Mustard Greens can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to rapeseed plant care, which shares the same genus.
Is the Mustard Greens Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Mustard Greens, 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 Mustard Greens?
Mustard Greens is susceptible to cabbage worms, aphids, flea beetles. 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 Mustard Greens Need?
Mustard Greens grows outdoors in USDA Zone 8a – 11b. It survives winters down to planting zone 8a. Mustard Greens is native to India, China.
Hardiness Zone
Zone 8a – 11b
Keep exploring plants
Mustard Greens 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 Brassica genus — compare its care with other Brassica species on PlantoScan.
Brassica is part of the Brassicaceae plant family — browse all Brassicaceae genera and species.
Mustard Greens 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: Brassica juncea (L.) Czern., family Brassicaceae (first published in Consp. Pl. Charc. : 8 (1859)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Mustard Greens, 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: Raja Sekhar Chimirala, 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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