Hibiscus Seeds – Syriacus

Hibiscus Syriacus, commonly known as Rose of Sharon, is a hardy flowering shrub admired for its large, showy blooms and long blooming period. These vibrant flowers appear in shades of pink, purple, white, or blue, adding a tropical charm to gardens and landscapes. Easy to grow and low maintenance, this hibiscus variety attracts butterflies and hummingbirds while thriving in warm, sunny conditions. Ideal for garden borders, hedges, or container planting, Hibiscus syriacus delivers beauty and resilience throughout the summer season.

Features:

• Produces large, trumpet-shaped flowers with vibrant color variations.

• Long flowering season from mid-summer to early fall.

• Attracts pollinators like butterflies and hummingbirds.

• Suitable for garden borders, hedges, and decorative landscapes.

• Tolerant to heat, drought, and urban conditions once established.

• Easy to grow from seeds and low maintenance.

Specifications:

• Scientific Name: Hibiscus syriacus

• Common Name (US): Rose of Sharon

• Plant Type: Deciduous shrub

• Bloom Color: Pink, purple, white, or blue (varies by plant)

• Bloom Size: 3–4 inches (7–10 cm)

• Plant Height: 6–10 feet (1.8–3 m)

• Sunlight Requirement: Full Sun to Partial Shade

• Soil Type: Well-drained, fertile soil

• Watering: Regular watering during establishment; drought tolerant afterward

• Germination Time: 15–30 days

• Days to Bloom: 120–150 days from germination

• Sowing Method: Start indoors 6–8 weeks before the last frost or direct sow after frost danger has passed

• Spacing: 24–36 inches apart

• Growing Season: Spring to Fall

• USDA Hardiness Zones: 5–9

• Best Planting Months (by Zone):

  • Zones 5–6: April to May

  • Zones 7–8: March to April

  • Zones 9: February to March

• Use: Garden borders, ornamental hedges, large containers, and landscape displays