Nigra Hollyhock Seeds – Alcea rosea | Deep Black Heirloom Blooms

Grow one of the most striking heirloom flowers in the world with Nigra Hollyhock Seeds (Alcea rosea)—famous for their deep, velvety, nearly black blooms that stand tall and command attention. These gothic-beautiful flowers reach 5–8 ft, making them perfect for back borders, fences, farmhouses, and cottage gardens.

Nigra Hollyhocks attract bees, butterflies, and hummingbirds, bloom generously from mid-summer to fall, and are cold-hardy in USDA Zones 3–9. Whether you’re building a pollinator garden, adding drama to a landscape, or growing cut flowers, this classic heirloom promises breathtaking results.

Easy to grow, dependable, and visually stunning—Nigra Hollyhocks belong in every flower lover’s collection.

🌱 Why Grow Nigra Hollyhock Seeds?

• 🌑 Rare, deep-black blooms with a velvety, mysterious finish
  
• 🏡 Ideal for cottage gardens, vintage borders & statement landscaping
  
• 🦋 Loved by pollinators—excellent for wildlife-friendly gardens
  
• 🌿 Cold hardy, drought-tolerant, and low-maintenance once established
  
• ✂️ Gorgeous for cut-flower arrangements
  
• 🌺 Blooms in the second year and beyond (biennial/perennial)

🌿 Growing Tips for Nigra Hollyhocks (Alcea rosea)

• Planting Depth: Lightly press seeds into soil; do not bury deeply
  
• Sow Indoors: 6–8 weeks before last frost
  
• Direct Sow: After danger of frost
  
• Germination: 10–21 days
  
• Sunlight: Full sun for darkest bloom color
  
• Spacing: 18–24 inches apart
  
• Height: 5–8 feet
  
• Support: Stake tall plants in windy areas
  
• Water: Moderate; avoid waterlogging
  
• Blooming: Typically year 2, then returns annually

❓ Frequently Asked Questions (FAQ)

Are Nigra Hollyhocks truly black?
They appear deep maroon-black, especially in full sun—one of the darkest flowers available.

Are Nigra Hollyhocks annuals or perennials?
They are biennial, blooming in the second year, but often act as short-lived perennials and self-seed reliably.

Do they grow well in containers?
Because they reach 5–8 ft tall, they perform best in-ground but can grow in large, deep containers.

Are they safe around pets?
Yes—hollyhocks are generally considered non-toxic to pets and wildlife.

Do Nigra Hollyhocks need staking?
In windy or exposed areas, staking will help keep tall stalks upright.

Where to Buy Nigra Hollyhock Seeds for Sale?
At Seeds World, we offer fresh, non-GMO Nigra Hollyhock seeds with fast U.S. shipping—packed for purity, high germination, and dependable garden performance.