Black Henbane (Hyoscyamus niger) Nightshade Flower Seeds

Black Henbane (Hyoscyamus niger) is a striking ornamental flowering plant valued for its dramatic yellow-purple veined blossoms and its association with traditional medieval gardens. This rare nightshade family plant adds unique texture and color to themed landscapes and collector’s gardens.

A biennial herb, it forms rosettes of soft, hairy leaves in its first year and produces tall flowering stalks in the second. Black Henbane prefers sunny locations with well-draining soil and moderate watering. Grown responsibly as a botanical ornamental, it enhances the aesthetic of historical or curiosity gardens.

Features

• Distinctive pale yellow flowers with dark purple veins
• Rare heritage ornamental plant from the nightshade family
• Ideal for gothic, historical, and botanical gardens
• Hardy biennial species tolerant of poor soil
• Non-GMO, open-pollinated seed stock

Specifications

• Scientific Name: Hyoscyamus niger
• Common Name: Black Henbane
• Plant Type: Biennial Ornamental Herb
• Seed Type: Non-GMO
• Growth Habit: Upright, spreading rosette to tall stems
• Mature Height: 18–36 inches (45–90 cm)
• USDA Hardiness Zones: 5–9
• Light Requirements: Full Sun to Partial Shade
• Soil Type: Well-drained, sandy or loamy soil
• Watering Needs: Moderate; avoid overwatering
• Bloom Time: Late Spring to Mid-Summer
• Container Friendly: Yes
• Uses: Ornamental display, educational botanical gardens, heritage collections

Planting Guide 

• Sow seeds outdoors in late fall or indoors 6–8 weeks before last frost.
• Lightly press seeds into the soil surface; do not cover deeply.
• Keep soil slightly moist until germination (14–28 days).
• Maintain temperature between 65–75°F (18–24°C).
• Transplant seedlings after frost danger passes.
• Space plants 12–18 inches apart in sunny, well-drained soil.
• Water regularly during establishment, then reduce frequency.
• Allow natural reseeding for continued growth in following seasons.
• Suitable for rock gardens, wildflower borders, and ornamental beds.
• Handle carefully; for decorative cultivation only.