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A picture of a Black horehound

Black horehound

Ballota nigra

Full Sun
Light watering
Frost Hardy

9a

USDA zone

-7°C

Minimum temperature

Expected size

Height
Spread

90cm

Max

75cm

70cm

Min

60cm

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Black horehound

A photo of Black horehound
A photo of Black horehound

Black horehound Overview

This perennial will grow about 1m tall. The foliage is greyish-green and resembles a nettle. It produces clusters of small purple flowers which are star-shaped.

How to propagate Black horehound

Cuttings

Semi-ripe cuttings in summer.

Other uses of Black horehound

Found on waste ground.