Hibiscus Rose of Sharon (Hibiscus syriacus) Seeds - Cold Hardy, Perennial

Bring long-lasting summer color to your garden with Hibiscus Rose of Sharon seeds (Hibiscus syriacus). These cold-hardy perennial plants produce large, showy flowers that bloom throughout summer, making them perfect for garden beds, borders, hedges, and containers. Easy to grow and maintain, they thrive in full sun and moderate climates.

Features

1. Variety: Rose of Sharon (Hibiscus syriacus)
2. Growth habit: Upright, deciduous shrub
3. Flower style: Large, trumpet-shaped blooms in shades of pink, purple, white, or red
4. Blooming season: Summer to early fall
5. Light requirement: Full sun to partial shade
6. Soil requirements: Well-draining, moderately fertile soil
7. Suitable for: Garden beds, borders, hedges, containers

Specifications

1. Seed Type: Non-GMO seeds
2. Planting Season: Spring
3. USDA Zones: 5–9
4. Planting Depth: 0.25 inch (6 mm)
5. Spacing: 3–6 feet (90–180 cm) between plants
6. Germination Time: 14–28 days
7. Days to Bloom: 2–3 years for first full flowering (perennial shrub)
8. Plant Height: 8–12 feet (2.4–3.6 m)
9. Plant Width: 6–10 feet (1.8–3 m)
10. Watering: Moderate; drought-tolerant once established
11. Maintenance: Low-maintenance perennial shrub; prune to shape
12. Indoor/Outdoor: Outdoor planting in beds, borders, and containers

Planting Guide

1. Sow seeds indoors in early spring or directly outdoors after last frost.
2. Keep soil moist and warm for germination.
3. Transplant seedlings outdoors once they are strong and frost risk has passed.
4. Provide full sun for best bloom production.
5. Space plants adequately to allow for mature growth and airflow.