Hollyhock Seeds – Black Prince

Hollyhock ‘Black Prince’ is a striking variety admired for its deep maroon, almost black, velvety blooms that create a bold and elegant statement in any garden. Known for its tall flower spikes and abundant blossoms, this heirloom variety adds dramatic vertical interest to borders, fences, and cottage-style gardens. Easy to grow and low maintenance, Hollyhocks are loved by pollinators and ideal for creating a vintage or classic floral display throughout the summer months.

Features:

• Produces tall flower spikes with dark maroon to near-black double blooms.

• Excellent background plant for garden borders and fences.

• Attracts butterflies, bees, and hummingbirds.

• Hardy and drought-tolerant once established.

• Long blooming period, perfect for summer gardens.

• Ideal for cut flowers and ornamental planting.

Specifications:

• Scientific Name: Alcea rosea ‘Black Prince’

• Common Name (US): Hollyhock

• Plant Type: Biennial or short-lived perennial

• Bloom Color: Deep maroon to near-black

• Bloom Size: 3–4 inches in diameter

• Plant Height: 5–7 feet (150–210 cm)

• Sunlight Requirement: Full Sun

• Soil Type: Rich, well-drained soil

• Watering: Moderate; water when topsoil feels dry

• Germination Time: 10–14 days

• Days to Bloom: 90–120 days after sowing

• Sowing Method: Direct sow outdoors after frost or start indoors 6–8 weeks before transplanting

• Spacing: 18–24 inches apart

• Growing Season: Spring to Summer

• USDA Hardiness Zones: 3–9

• Best Planting Months (by Zone):

  • Zones 3–5: May to June

  • Zones 6–8: April to May

  • Zones 9: February to March

• Use: Garden borders, cottage gardens, backdrops, and cut flower arrangements