Shop  >  Plants & Seeds  >  Seeds & Bulbs  >  Flowers  >  Black Hollyhock

These stunning biennial flowers boast deep burgundy to near-black blooms that create a striking contrast against any backdrop. Perfect for attracting pollinators and adding vertical interest, Black Hollyhocks are easy to grow and make a bold statement in borders, cottage gardens, or as standalone focal points. With our high-quality seeds, you can cultivate these majestic plants and enjoy their towering presence for years to come.

Details:

• Type: Biennial (may last 3-4 years in favorable conditions)

• Native Region: Cultivated varietyx

• Hardiness Zones: 3-8

• Height: Up to 4-6 feet tall

• Spread: 18-36 inches

• Bloom: Summer to fall with dark burgundy to black blooms

Uses:

• Especially attractive to pollinators

• Ornamental landscaping

• Excellent for creating dramatic contrast in gardens

• Backdrop for flower borders

• Dramatic focal point when planted near white structures

Growing Information:

• Sun Exposure: Full sun to partial shade

• Soil Type: Rich, moist soil; Neutral to slightly alkaline

• Water Needs: Moderate

• Maintenance Level: Moderate

• Sowing Depth: 1/8 inch deep

• Spacing: 18-36 inches apart

• Germination: 10-14 days

• Days to Maturity: Blooms in second year unless vernalized (started in a cold environment)

• Notes: Sow seeds outdoors one week before the last frost date. Provide adequate space between plants to ensure good airflow. Stake tall plants for support. Avoid overly rich potting mixes when starting seeds indoors to prevent damping off.

S.D.L.A. is committed to promoting sustainability and community well-being. We donate 10% of our revenue to: The RMU Foundation. This initiative works tirelessly to create programs and partner with businesses to provide free resources to people facing housing insecurity with things like food and survival supplies, free education, and employment assistance, bridging compassion with tangible support.