Sunny Smile is a hybrid dwarf, pollenless Helianthus with a branching habit, most evident when grown in larger pots. It flowers year-round in only 50 to 55 days when grown at temperatures above 60°F (15°C). In small pots, under short-day conditions it is a very appealing miniature. With its branching habit, it can continue to bloom giving it a longer shelf life.
Plants are 15 to 20 inches (40 to 50 centimeters) in height under long-day conditions, in small pots under short-day conditions plants are approximately 6 inches (15 centimeters) in height.