250 Giant California Zinnia Seeds/ Free Shipping BLOOM TIME: May - Frost / Annual multiple orders of the same product will be packaged in one packet to save on waste PLANT HEIGHT: 36 - 48" . . . PLANT SPACING: 36 - 48" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average White, Yellow, Orange, Purple, Pink, Red, and Striped. These easy to grow giant zinnias come in a wonderful array of colors, and will attract birds, bees, and butterflies to your garden.