landscape desigm

'Early in the history of garden design - dating back to the earliest days of civilization in Sumeria, Egypt and China - plants took center stage in garden spaces.'  With that observation, Bruce Zaretsky opened his On the Level column in February 2009, then added:  'Terraces and hanging gardens were built not for their innate ornamental qualities, but rather to display the plants they contained.  Always, the prized plant was