You can buy fresh chrysanthemums, affectionately known as "mums," in the autumn just about anywhere you can buy flowers: florists, garden centers, grocery stores and on the Internet. Alternatively, if you want to buy chrysanthemum seeds, you can buy them all year round through mail order catalogues and online.
In the autumn, chrysanthemums make their bunchy, colorful, heady appearances in pots all over the country. Lowes.com features these hardy perennials in planters and offers copper, yellow and burgundy blossoms. For online purchases, Amazon.com sells seeds of single-color mums, such as white, red-pink and orange blossoms, including mixed mum seed packages.