White mustard

Sinapis alba

Layer 4 · Herbaceous
Pest repellent

Status by region

No restrictions recorded in the lists we checked.

Checked against the European Union list (Regulation 1143/2014) · Portugal's national invasive species list (Decreto-Lei 92/2019).

Information based on the cited sources, not legal advice — always confirm your local rules.

About

Native to the Mediterranean ecosystem, it is a fast-growing plant with exuberant yellow blooms. It is widely used as green manure and for its ability to release compounds into the soil that repel pests. Its tender leaves and seeds are edible.

It can be planted now — September is one of the best months.

See which trees white mustard grows well with

These trees share this species' soil and climate — the pairing is inferred from conditions, not from a guild we have already seen.

No account needed.

Needs

Water: Medium
Light: Full sun
Size: Annual herb up to 0.8 m
Mature diameter: 0.3 m
Soils: Clay, Loam, Sandy, Limestone
Climates: Atlantic coast, Inland / Continental, Hot, dry Mediterranean

Calendar

January
February
March — Planting
April — Planting
May — Harvest
June — Harvest
July — Harvest
August — Harvest
September — Planting
October — Planting
November
December

Harvest
Planting

Medicinal use: The seeds are ground as a culinary condiment and used in poultices to relieve muscle pain.

Where to buy

Central trees worth considering

May work well together — same soil and climate, complementary layers. We have not seen this combination in a generated guild yet.

May grow well with

Suggestions worked out from growing conditions — same soil and climate, complementary layers and functions. These are not observed guilds; treat them as a starting point to try on your own land.