Great White Zinnia Seeds

Giant White Zinnia is a magnificent heirloom-style annual that produces enormous, fully double blooms of pristine white held high above vigorous, upright plants. The large dahlia-flowered blossoms often reach 4 to 6 inches across, creating an elegant display that brightens flower beds, cutting gardens, and summer landscapes. Its pure white flowers provide a beautiful contrast to brightly colored companion plants while adding a touch of sophistication to fresh bouquets and garden arrangements. Blooming continuously from early summer until frost, Giant White Zinnia is both easy to grow and exceptionally rewarding.

Garden Uses
Giant White Zinnia is outstanding for cutting gardens, mixed flower borders, cottage gardens, pollinator gardens, mass plantings, and large landscape beds. The brilliant white blooms blend effortlessly with virtually every flower color, making them excellent companions for red, pink, orange, yellow, purple, and blue annuals. They pair beautifully with salvia, cosmos, celosia, marigolds, sunflowers, rudbeckia, and ornamental grasses. The long, sturdy stems make this variety one of the finest white zinnias for floral arrangements.

Growing Information
Direct sow seeds outdoors after all danger of frost has passed and soil temperatures have warmed, or start indoors 4 to 6 weeks before transplanting. Plant seeds approximately 1/4 inch deep in fertile, well-drained soil. Germination usually occurs within 5 to 10 days at temperatures between 70–80°F. Grow plants in full sun for maximum flowering. Mature plants typically reach 30 to 40 inches tall with a spread of 18 to 24 inches. Water deeply but avoid wetting the foliage whenever possible to help reduce disease. Regular deadheading encourages plants to continue producing fresh blooms until autumn frost.

Quick Facts

• Botanical Name: Zinnia elegans
• Common Name: Giant White Zinnia
• Plant Type: Warm-season annual
• Height: 30–40 inches
• Spread: 18–24 inches
• Bloom Size: 4–6 inches across
• Bloom Color: Pure white
• Bloom Season: Early summer until frost
• Sun Requirements: Full sun
• Soil Requirements: Fertile, well-drained soil
• USDA Zones: Grown as an annual in all zones
• Pollinator Friendly: Excellent
• Butterfly Friendly: Excellent
• Cut Flower: Outstanding
• Heat Tolerance: Excellent