Last week’s column highlighted the garden herbs peppermint, chamomile, lemon balm, and fennel. Teas made from herbs in today’s column are more unusual since they are drought tolerant plants often grown in xeric, low water-use, gardens.Echinacea (Echinacea purpurea). Echinacea was highlighted in the April 2 From the Garden column as a flowering plant recommended for p...