Chrysanthemums is the real name. Deep Purple Cremone Mums is the common name. The flowers are long lasting at least 14 days the most popular types are: Button , Daisy, Cushion, Spider and Micro Spray & Santini’s have multiple blooms on a stem. Disbuds are single large blooms, and Spray Mums have multiple smaller blooms per stem. Clean water and clean vase and recutting every couple of days will make them last a long time in a vase most. The deep purple color is available mostly summer & fall. Please order this color at least 2 weeks in advance because we don’t keep them always on hand.