Find the 18" Navy Ball Mum Bush by Ashland® at Michaels. Bring a rich pop of color to your autumn floral arrangements and wreath projects with this striking bush of navy ball mums from Ashland. Perfect for celebrating the arrival of fall's turning leaves, warm spiced flavors and crisp breezes, place these flowers in a simple glass vase on their own or add to a basket interspersed with dusty pink blooms and greenery to add depth to the season's décor.