Black Henbane (Hyoscyamus ) is a dramatic, historical ornamental noted for pale yellow, bell-shaped flowers with dark purple veins and a bold, architectural habit. This plant is grown strictly as an ornamental and for educational gardens. All parts are toxic—handle with care and keep away from children and pets.

Why Choose Black Henbane?

• Distinctive flowers – pale yellow bells traced with purple veins
• Architectural presence – annual/biennial growth up to ~3 ft (about 1 m)
• Adaptable placement – thrives in full sun to partial shade with well-drained soil
• Responsible growing – not edible; wear gloves when handling; prevent self-seeding

Planting Instructions

• Best Time to Sow: Fall or early spring outdoors; or start indoors and transplant after frost.
• Soil: Well-drained, moderately fertile; avoid waterlogging.
• Light: Full sun to partial shade.
• Sowing Depth: Surface-sow and gently press/tamp, or cover very lightly up to 1/8 in (3 mm).
• Germination: ~1–4 weeks around 65–75°F (18–24°C); keep evenly moist, not soggy.
• Spacing: 18–24 in (45–60 cm) between plants.
• Growing Zone (approx.): USDA 4–8; often biennial in temperate regions.
• Care Notes: Deadhead before seeds mature to limit spread. Do not ingest. Dispose of plant material responsibly.

What’s in the Pack?

Available in multiple pack sizes on this page. Select your preferred quantity above.

❓ Frequently Asked Questions (FAQ)

Is Black Henbane annual or biennial?

It can behave as an annual or a biennial depending on climate and sowing time. In many temperate areas it overwinters and flowers in the second year.

Does it need full sun?

It performs best in full sun but tolerates partial shade if drainage is good.

Is it safe to grow around pets or edibles?

No. All parts are toxic if ingested. Grow as an ornamental only, keep away from children and pets, and wash hands after handling.

Can it spread by itself?

Yes, it can self-seed. Deadhead spent blooms before seed set to prevent unwanted spread.

Where to buy Black Henbane seeds for sale?

At Seeds World, multiple vetted vendors offer fresh Hyoscyamus seeds with fast U.S. shipping options. Compare packs and choose the size that fits your project.