If you know the genus and species of this month’s mystery plant, you could win a year’s subscription to Fine Gardening. If you’re already a subscriber, we’ll add a year onto your subscription.

Email us  your entry by October 1, 2007, with “Mystery Plant #25 – September” in the subject line. Along with your guess, please include your mailing address and your telephone number. The winner will be chosen at random from all correct entries.

Last month’s winner

Last month’s mystery plant was annual clary sage ( Salvia viridis, syn. Salvia horminum ). This bushy annual grows up to 20 inches tall; it is grown not for its insignificant flowers, but for the colorful, longlasting bracts that surround them. It prefers full sun and well-drained soil and makes a great addition to floral arrangements as well as mixed borders. Congratulations to Tracey Culver of Florence, Massachusetts, whose name was chosen at random from all correct entries to win a one-year subscription to Fine Gardening.