Marrubium vulgare, commonly known as white horehound, is a perennial herb in the mint family Lamiaceae. It is native to Europe, northern Africa, and southwestern and central Asia. The plant has a long history of use in traditional medicine, particularly for respiratory ailments. It has a bushy growth habit and produces small white flowers.
White horehound thrives in temperate climates and prefers full sun. It is drought-tolerant and does not require frequent watering. The plant grows best in moderate temperatures and average humidity levels. Regular pruning helps maintain its shape and encourages new growth.
Soil
Marrubium vulgare prefers well-draining loamy soil. It can tolerate poor soil conditions but thrives in moderately fertile soil. Ensure the soil has good drainage to prevent root rot.
Fertilizer
Fertilize white horehound with a balanced fertilizer, such as 5-10-10, once in the growing season. Avoid over-fertilizing, as the plant does not require high nutrient levels.
Repotting
Repot Marrubium vulgare when it outgrows its container or every 2-3 years. Choose a slightly larger pot with good drainage. Gently remove the plant from its current pot, shake off excess soil, and place it in the new pot with fresh soil.
Propagation
Propagate white horehound through seeds or cuttings. Sow seeds in early spring or take cuttings in late spring to early summer. Ensure the cuttings have at least two sets of leaves and plant them in well-draining soil.
Pruning
Prune Marrubium vulgare regularly to maintain its shape and encourage bushier growth. Remove dead or damaged stems and trim back leggy growth. Pruning is best done in early spring before new growth begins.
Toxicity
Marrubium vulgare is not toxic to pets or humans. It is safe to grow in gardens where pets and children may be present.
Additional
White horehound has been used in traditional medicine for its expectorant and anti-inflammatory properties. It is often used in herbal teas and cough syrups. The plant can also attract beneficial insects to the garden.
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