Outsidepride Impatiens Blues Flower Seed Mix - 100 Seeds This impatiens blues mix will add a dazzling display indoors or outdoors as an annual in USDA Zones 3 - 10 Reaching 10 - 14 inches tall, this flower seed mix is perfect for containers and hanging baskets. Very robust growing and has the biggest blooms of all the impatiens. This seed mixture is simply stunning when in full bloom! Sow 6 - 8 seeds for every impatiens plant you desire in your flower garden.