Incurve (UK Classification – 3, 13, 23; US Classification – 3)
The petals of these types of chrysanthemum that curve inward. These incurves are more uniform-looking and more formal. They are also more ball-like and compact, making it especially attractive to many mum-lovers. Incurve blooms range widely in size from 3 to 5 inches in diameter. Plants usually grow 3 to 4 feet tall.