Alliums bloom in the late spring, so it's best to start growing them in the beginning of spring by spreading them out in the soil and covering them up with an inch of top soil. Learn about misting seeds to grow alliums with help from a sustainable gardener in this free video on growing alliums from seeds. Expert: Yolanda Vanveen Bio: Yolanda Vanveen is a third-generation flower grower and sustainable gardener who lives in Kalama, Washington. She is the owner of vanveenbulbs.com and has sold flower bulbs for more than 15 years. Filmmaker: Daron Stetner