- You will get 300+ Seeds of Giant California Zinnia Mix Flower Seeds. - Seller Notes “Zinnia elegans. U.S. Grown seed. Test date 1/23.Germination 96%. Packed 1/23.”. - Planting Time: 7 Weeks. - Soil Type: Clay, Loam, Peat, Sand. - Life Cycle: Annual. - USDA Hardiness Zone (°F): 10 (30 to 40 °F). - Soil pH: Neutral. - Watering: Medium. - Sunlight: Full Sun. - Giant California Zinnia. Huge 5" to 6" flowers in red, yellow, orange, lavender, maroon, violet, and white. Great for cut flowers. Cut one flower and the plant grows back two. Butterflies and bees love zinnias. Blooms all summer into fall. Pretty much carefree after established. Very easy to grow. Just add water and stand back! Flowers in about 7 weeks.300+ Quality seeds per order. Thank you! - Zinnia elegans. - Annual. - Full Sun. - Spring, soil temp 70F+. - SOW 1/4"deep, 3 " apart. Keep moist. - Germinates in 7 to 14 days. - Medium water. Light fertilizer if needed. - Flowers are mixed colors. Blooms early summer through late fall.