The word dayflowers is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (22 words)
defrays, fardels, fedoras, flayers, flowers, flowery, folders, forayed, foreday, forelay, foresaw, fowlers, lawyers, loaders, loafers, ordeals, reflows, refolds, reloads, seafowl, yodlers, yowlers