Black horehound

Ballota nigra

Layer 4 · Herbaceous
Attracts pollinators

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

Hardy herbaceous perennial with purple flowers visited by bees throughout the summer. Colonises borders and disturbed sites, occupying the herbaceous layer of a food forest. Tolerates drought, heat and poor soils.

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

See which trees black horehound 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: Low
Light: Full sun
Size: Herbaceous perennial up to 0.8 m
Mature diameter: 0.5 m
Soils: Loam, Limestone, Sandy
Climates: Atlantic coast, Inland / Continental, Hot, dry Mediterranean

Calendar

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

Harvest
Planting

Medicinal use: Traditionally used in infusions for its antiemetic, antispasmodic and sedative properties to treat nausea and nervous disorders.

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.