Giant Lilac Zinnia Seeds

Giant Lilac Zinnia is a beautiful warm-season annual prized for its large, fully double blooms in soft lilac, lavender-pink, and rosy purple tones. The rounded dahlia-like flowers are held on sturdy stems above vigorous green foliage, creating an elegant display in sunny flower beds and cutting gardens. Its gentle pastel coloring offers a softer alternative to the bright reds, oranges, and yellows often associated with zinnias, making it especially useful in romantic cottage gardens, pastel borders, and fresh floral arrangements.

Garden Uses
Giant Lilac Zinnia is excellent for cutting gardens, cottage gardens, pollinator borders, mixed annual beds, butterfly gardens, and mass plantings. The soft lilac blooms pair beautifully with white cosmos, blue salvia, lavender ageratum, pink gomphrena, purple verbena, silver foliage plants, and ornamental grasses. Its long stems and large flowers make it a wonderful choice for bouquets, especially where a softer, more refined color palette is desired.

Growing Information
Sow seeds directly outdoors after all danger of frost has passed and the soil has warmed, or start indoors 4 to 6 weeks before transplanting. Plant seeds about 1/4 inch deep in fertile, well-drained soil. Germination usually occurs within 5 to 10 days at temperatures of 70–80°F. Grow in full sun for the strongest stems and heaviest bloom production. Mature plants typically reach 30 to 40 inches tall with a spread of 18 to 24 inches. Water deeply at the base of the plant, avoid overhead watering when possible, and remove faded flowers regularly to encourage continuous blooming until frost.

Quick Facts

• Botanical Name: Zinnia elegans
• Common Name: Giant Lilac Zinnia
• Plant Type: Warm-season annual
• Height: 30–40 inches
• Spread: 18–24 inches
• Bloom Size: 4–6 inches across
• Bloom Color: Lilac, lavender-pink, rosy purple
• Bloom Season: 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: Excellent
• Heat Tolerance: Excellent