The Stream Garden is tucked away in its own corner of the garden and features two small pools connected with a short watercourse. Adjacent to the upper pool is a slightly more shady rock garden than the Alpine Garden, providing garden space for plants requiring sharp drainage but a bit more protection from the sun.

Overall, this garden supports a wide variety of site conditions and thus provides an opportunity to experiment with cultivating a diversity of interesting perennials and shrubs in a relatively small space.