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Horehound White

Marrubium vulgare

Horehound White (Marrubium vulgare) is a hardy, perennial herb known for its woolly, gray-green leaves and clusters of small white flowers. Native to Europe, this plant thrives in full sun and well-drained, sandy soils, making it ideal for herb gardens and xeriscaping. It is drought-tolerant and easy to grow, often used in traditional herbal remedies for its medicinal properties. Horehound’s aromatic leaves are commonly used to make teas, lozenges, and syrups, adding both utility and charm to any garden.

$3.85

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Plant Data
Growing Instructions
Plant Data
Zones:  4, 5, 6, 7, 8
Growth Cycle:  Perennial
Light:  Full Sun, Full Sun to Partial Shade
Water Needs:  Low, Low to Moderate, Moderate, Moderate to High
Color: 
Soil:  Tolerant of most soils, Chalky, Saline, Peaty, Sandy, Loam, Silty, Clay
Growth Rate:  Moderate
Maturity - (Vegetables Only): 
Edible:  Yes.
Height:  Up to 2 Feet
Evergreen:  No
Special Features:  Attracts Pollinators, Flowering, Medicinal, Drought Tolerant,Deer Resistant,Cold Hardy,Self Seeding
Warnings:  Uknown - Let us Know
Growing Instructions
How to Germinate Horehound White

How to Germinate Horehound White (Marrubium vulgare)

  • Sow Horehound White seeds directly outdoors in early spring or fall, as they prefer cooler temperatures for germination.
  • If starting indoors, plant seeds 6-8 weeks before the last expected frost date.
  • Sprinkle seeds on the soil surface and press them down lightly; do not cover, as they need light to germinate.
  • Maintain a soil temperature of 65-70°F (18-21°C) for optimal germination, which typically takes 14-21 days.
  • Water lightly to keep the soil consistently moist but not waterlogged during the germination period.
  • Once seedlings have 2-3 sets of true leaves, transplant them outdoors, spacing them 12-18 inches apart.

Additional Tips

  • Horehound prefers full sun and well-draining, sandy soil. It thrives in poor, dry conditions.
  • Water sparingly, as Horehound is drought-tolerant and prefers drier soil once established.
  • Mulch around the base of the plants to retain moisture and suppress weeds, especially in hotter climates.
  • Prune regularly to maintain the plant's shape and encourage bushier growth.
  • Harvest leaves just before the plant flowers for the best flavor and medicinal potency.
Horehound White

Horehound White

$3.85