Black Knight Delphinium – 25 Seeds

Add unmatched drama and regal height to your garden with our Black Knight Delphinium seeds. Celebrated as the darkest variety available, this magnificent heirloom perennial produces towering, 4 to 6-foot spires packed with intensely deep violet-purple blossoms, each centered with a striking black "bee" (the central petals). Creating a breathtaking vertical display in late spring and early summer, these showstopping stalks are the ultimate focal point for cottage garden borders and high-end floral arrangements.

⭐ What you'll love

• The deepest, richest violet-purple color available in the delphinium family.
• Towering 4 to 6-foot floral spires that create spectacular vertical architecture.
• Naturally deer and rabbit resistant, making them ideal for unprotected borders.
• Highly attractive to hummingbirds, bumblebees, and butterflies.

🌿 Seed details

• Plant Name: Black Knight Delphinium (Delphinium x cultorum)
• Seed Quantity: Approx. 25 seeds
• Type: Heirloom, Open Pollinated, Non-GMO
• Lifecycle: Perennial
• Height: 4-6 feet
• USDA Zone: 3-8
• Origin: American Grown

🌱 Growing instructions

• Sowing: Direct sow outdoors in late fall. For spring planting, cold-stratify seeds in the refrigerator with moist sand for 2-4 weeks prior to sowing. Indoor starts can be sown directly on the surface of a flat at 60-65°F.
• Note on Soaking: If soaking seeds, both seeds that float and seeds that sink will be viable.
• Depth: Plant seeds just below the surface (1/8 inch).
• Transplanting: Move seedlings outdoors safely after the threat of spring frost has passed.
• Light Requirement: Full Sun to Partial Shade.
• Care: Flourishes in moist, rich soil. Side-dress with well-composted manure in spring. Staking is recommended for tall stalks in windy areas. Harvest for arrangements when 1/4 of the flowers are open.

✅ Our seed packets

• Professionally designed and made.
• Resealable for convenient, long-term storage.
• Eco-friendly and recyclable (contains no plastic).
• Includes full, detailed growing instructions.
• Vigorously tested to ensure the highest germination rates.
• Custom packets for weddings, baby showers, or events are available. Just message us!

🚚 Shipping

• FREE SHIPPING on all orders of $35 or more.
• Flat Rate shipping no matter how many seeds you order.
• Tracking is included with every order.