Black Hollyhock Seeds – 5g Alcea rosea for Planting

Bring tall flower spires to a sunny cottage garden with black hollyhock seeds. Plant along a fence or at the back of a border, where upright stems can add height without crowding smaller flowers.

Features

• Package: 5g of seeds for planting; sold by weight, not seed count.
• Botanical name: Alcea rosea.
• Common name: Black hollyhock.
• Usually grown as a biennial or short-lived perennial.
• Often forms a leafy rosette in its first year and flowers in its second year.
• Seeds only; live plants, cut flowers, and supports are not included.

Sowing Instructions

1. Direct sow after the last spring frost, or sow in late summer where seedlings have time to establish before winter.
2. For indoor starts, sow in individual deep pots 6–8 weeks before the last expected frost to minimize disturbance to the taproot.
3. Sow approximately 1/4 inch deep in clean seed-starting mix or finely prepared, well-drained garden soil.
4. Keep around 65–75°F and evenly moist, not waterlogged. Germination commonly takes 10–21 days.
5. Provide bright light after emergence. Gradually acclimate indoor seedlings outdoors for 7–10 days before transplanting after frost danger has passed.
6. Transplant while young, keeping the root ball intact. Space plants approximately 18–24 inches apart for airflow.

Care & Support

• Choose full sun with at least 6 hours of direct sunlight daily and fertile, well-drained soil.
• Water regularly during establishment, then deeply during dry spells. Water at soil level rather than wetting the foliage.
• Add compost before planting. Feed moderately with a balanced flower fertilizer according to its label if needed.
• Stake tall flowering stems early in exposed locations, securing them with loose, soft ties. Hollyhocks are upright plants, not climbing vines.
• Watch for hollyhock rust, especially orange-brown spots on leaf undersides. Remove affected leaves promptly, clear fallen debris, and maintain good airflow.
• Remove spent flowers to keep plants tidy and limit self-seeding, or allow selected seed heads to mature.
• Cut back spent flower stalks after flowering. Keep plant crowns free of soggy mulch and standing water over winter.
• Wear gloves if plant hairs irritate your skin.

Seed Disclaimer

Germination is affected by temperature, environment, and planting techniques. We sell seeds only and do not guarantee 100% germination.