500 CRYSTAL WHITE WAX PEARL ONION Allium Cepa Vegetable Seeds COLOR: White HARVEST: 95 Days PLANT HEIGHT: 12 - 18" . . . PLANT SPACING: 12 - 18" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average The Crystal White Wax Onion is a pearl onion that typically reaches 1  inches. It is mild in flavor and is a great choice for pickling.