The Idea Garden is a teaching tool for students in Longwood's education program, and home to what outdoor-landscapes director Andrea Brunsendorf calls "bulletproof plants," such as purple Russian sage (Perovskia atriplicifolia 'CrazyBlue'), red 'Johnny Reb' daylily, and the upright clumping feather reed grass (Calama- grostis x acutiflora 'Karl Foerster'). Self-seeding fillers include hot-pink Persicaria orientalis and a snappy-orange Cosmos sulphureus.
