plant

Brown mustard

Brassica juncea

Updated 4 Aug 2026 · AI-parsed entry

Brown mustard (Brassica juncea) — a plant, for Full sun, Medium water. Companions: Tomato, Common bean.

What it needs & gives back

↓ Needs

Lightfull sun to partial shade
Watermoderate

↑ Gives back

Mulch_biomassmedium to high
Nectarmoderate
Pollenmoderate

Companions

Keep apart from

Through the year

Through the year

JFMAMJJASOND
emergenceSeeds germinate and emerge when soil temperatures are consistently above 5°C.
floweringFlowering typically begins about 30 days after emergence, lasting for approximately one month.
fruitingFruiting (pod development) starts shortly after flowering and continues for about a month.
harvestSeeds are ready for harvest when pods dry and turn yellow, typically 30 days after fruiting begins.
senescencePlants die back with the first hard autumn frost.

Soil interactions

Drainagewell-drained
Nitrogen fixingNo
MycorrhizalNo
Accumulatessulfur, selenium
Soil textureloam, sandy_loam, clay_loam
Organic matterMedium
Compaction toleranceMedium

Propagation

Methodsseed
Difficulty1 / 5
Establishes in~0 yr
Self-seedingModerate

Wildlife & pests

Attractsbees, hoverflies, beneficial insects
Can host pestscabbage worms, flea beetles, aphids
Can host diseasesclubroot, downy mildew