Every estate garden has a need for great space fillers—lawns, big beds of ground covers, masses of shrubs—but every garden needs little gems, too. Fall is the best time to slip in some of those magical little plants that add dimension to even the smallest of garden spaces. The seasonal catal…

His style may be easygoing and laid-back—even undecorated, if you will, but Michael S. Smith is one of the hardest-working designers in the business. After all, it’s not just anyone who’s asked to design the First Family’s private residence or the Oval office. He’s done both, in addition to …