California Giant Zinnia Seeds - Flower Plant

California Giant zinnia is a tall, warm-season annual known for its vigorous, upright growth and large flower heads. It develops sturdy stems with fully double blooms that appear throughout the growing season. This variety grows well in warm climates and performs best in full sun with well-drained soil. California Giant zinnia establishes quickly and is suitable for garden beds, borders, and container planting, providing continuous flowering with consistent care.

Features

• Tall, upright plant with vigorous growth
• Produces large, fully double flower heads
• Suitable for warm and sunny climates
• Adaptable to garden beds, borders, and containers
• Continuous flowering during the growing season

Specifications

• Scientific name: Zinnia elegans
• Common name (US): Zinnia
• Seed type / variety: California Giant
• Growth habit: Upright, branching annual
• USDA zones: 2–11 (grown as annual)
• Planting season: Spring to early summer
• Growing season: Warm season
• Sowing Season: February to May
• Germination time and conditions: 5–10 days at 20–25°C
• Sunlight requirements: Full sun
• Soil requirements: Well-drained, moderately fertile soil
• Watering needs: Moderate, avoid overwatering
• Mature plant size: 90–120 cm height, 30–45 cm spread
• Plant spacing: 25–30 cm between plants