Zinnias - California Giant Mix Seeds - Approximately 300 Seeds Heirloom California Giant Zinnias Mixed Seeds produce stems as tall as 4 feet with huge 5" blooms, making this variety ideal for cut flowers! The shape of the flower is open with petals rounded on the ends Easy to grow and Great Cut Flowers. The more you cut, the more they bloom. Zinnias look wonderful when planted "en masse" Plant 1/4" Deep in Full sun. Marde Ross & Company has been a Licensed California Nursery since 1985.