Fall Floral Décor: Mums, Pumpkins, and Gourds Mums are synonymous with fall. There’s nothing more charming than a front porch or window box decorated with colorful potted mums (in all our favorite autumnal hues—burgundy, yellow, orange, cream and purple). And, of course, we cannot forget well-placed gourds and a fat pumpkin! So, why chrysanthemums (“mums” for short)? They actually prefer the cooler autumn . . .