- You will get 1000+ Seeds of Giant Dahlia 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 Dahlia Zinnia. 5" double Dahlia type flowers in scarlet, yellow, rose, red, orange, lavender, lime green, coral, pink and white. Blooms all summer into fall. Attracts loads of butterflies and bees. Pretty much carefree after established. Great for cut flowers, cut off one flower and the plant will replace that flower with two more. Easy to grow from seed. Just add water and stand back! Flowers in about 7 weeks.1000+ Quality seeds per order. - 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.