36" x 30" wide, (cutting propagated). This wildflower is a Texas native that has found a home over much of the southwestern U.S. 'Whirling Butterflies' blooms throughout the heat of the summer with its wispy flowering stems and bright white butterfly-shaped flowers. A tall, robust grower, 'Whirling Butterflies' is recommended to plant along hot walls in the back of south and west facing flower beds. Nice in combination with tall, blue perennials like Russian Sage or Salvia 'Indigo Spires'. Zones 5-10. 5" deep Premium pot.