Species Black Horehound
purple-white flowers with green leaves and green-brown stems

Black Horehound

Ballota nigra subsp. nigra

Black Horehound (Ballota nigra subsp. nigra) is a hardy, drought tolerant perennial herb native to Europe and North Africa. It produces small, dark purple blossoms in summer and thick, crinkled leaves throughout the year. The leaves and flowering tops are fragrant with a smell reminiscent of sweet hops and bitters, making it easy to identify. This plant is a popular medicinal herb, and has been used for centuries to treat coughs, asthma, and other respiratory ailments. Its grey-green foliage and tiny, colorful blossoms also make it a great accent for any garden.

Watering:

Frequent

Propagation:

Seed Propagation,Cutting,Division,Layering Propagation,Grafting Propagation

Hardiness Zone:

Sun:

full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

When it comes to watering, Black Horehound should be watered moderately, so that the soil stays lightly moist. This plant prefers to be watered regularly, so it is best to water this plant once a week. However, if the soil appears to be getting too dry, an extra irrigation may be required. As a general rule, it is best to avoid overwatering, and water only when the top few inches of soil feels dry.

sunlight

Black Horehound is a shade-tolerant plant species. It requires at least 6 hours of daily sunlight, preferably early in the day. This plant does best when it receives full morning sun and some afternoon shade. Direct, hot afternoon sunshine can be too much for this plant. Pruning is generally not necessary but may be done to keep the plant in good shape. During the summer, Black Horehound should be protected from strong winds and excessive dryness.

pruning

Black Horehound, a spreading herbaceous perennial, should be pruned regularly to promote a bushier and more compact growth habit. To achieve this, pruning should take place in early spring, when new growth appears. Prune selectively, removing as much as 1 third of the stems at a time, taking care not to disrupt the natural shape of the plant too much. After pruning, thin out the remaining stems to prevent overcrowding and improve air circulation. If the plant starts to lose its shape or vigor, pruning can be done again in mid-summer.