Another delightful North American native flower, Indian Blanket is the annual cousin of Blanket Flower. Plant Indian Blanket Seeds in a variety of climates and conditions. They prefer full sun but can tolerate some partial shade as well. Indian Blanket tends to be a speedy and prolific bloomer, so it's a great choice for gardeners looking for quick fix! This beauty is also popular in Oklahoma, where it's known as the state flower.