One gallon plant from Azalea Pink Formosa. Pictures are of a typical plant shipped. These pictures are not the actual plant, but very close to what you will receive. The Pink Formosa is in the Indica family of Azaleas. The Pink Formosa bloom is a single 3 inch diameter, dark pink flower that blooms in the spring. The Pink Formosa Azalea is a fast growing evergreen shrub. It can grow up to 8 feet tall with a 6 foot spread. Semi-shade to Partial sun. Zone 8-10.