The Consumerist:

The floral wire services, FTD and Teleflora, were very relevant in 1910 and 1934 when they began, respectively. These companies, along with 1980s upstart 1-800-Flowers, now dominate the industry by advertising their national brand and squeezing local florists. While these companies, and mail-order services like Proflowers, blanket the airwaves and Web pages with ads showing off their great deals before major flower-giving holidays, they are not the best choice to get the best bloom for your buck.

We have long recommended that flower-givers follow this basic process

Definitely buy your significant other, male or female, a flower arrangement. But do your best to support your local flower merchant.