'Mistral Orange' begonia is such a beauty with its delicate looking single-petaled flowers, one wonders, why choose 'Mistral Double Orange' begonia instead? Honestly, 'Mistral Double Orange' is all about flash with masses of bright orange double-petaled flowers almost covering the foliage. Growth habits of this variety and 'Mistral Orange' are the same, mounding to almost 12 inches, then draping beautifully over the edges of hanging baskets and container planters. 'Mistral Double Orange' begonia may be paired with ferns, hostas, or other shade loving perennials, or it can stand on its own.