Gaura 'Whirling Butterflies' (white flowers) 'Siskiyou Pink' [pink flowers] (Gaura Lindheimeri) - Zone 5-10 Full Sun-Part Shade. 2'-4' Height/Width. Herbaceous perennial with a graceful, loose, bushy habit. Orchid looking 1” flowers emerge from the top half of tall, narrow, branching stems late spring-summer. Great for hot climates and dry areas with well-drained soil. Cut back mid-summer to rebloom in fall. Propagate by seed (self-seeds) & division of clumps.