5: New Guinea Impatients Like their more common cousins, New Guinea impatiens provide hard-to-find brilliant color in shade. And it's not just the flowers. The foliage is often brilliantly, exotically colorful as well. 4: Torenia (Wishbone Flower) While the wishbone plant is adaptable, it prefers a rich, consistently moist and well-draining soil in an area with morning sun and afternoon shade. In fact, even in the hottest areas, the wishbone flower plant will bloom profusely