Mugwort is said to be drought-tolerant and grows to approximately 2.60 feet. Flowers are deep yellow in color and occur in late summer.  Blooms are a great attractor for butterflies and bees.  In a container however, mugwort requires a lot of water and spreads rapidly through roots.  The plant is also known as yomogi in Japanese and is used for coloring and flavoring food like mochi.