105-112 days. Pelleted Seeds. Super Parfait Series seeds promise a spectacular alternative to the traditional seasonal dianthus. Super Parfait Series seeds grow elegant 2-3 inch bicolored dianthus blooms bursting from a clean and compact 6-8 inch tall dwarfed shrub. Dianthus is hardy to a variety of hot, dry, and rocky climates throughout the world and is certain to liven up your home or patio this summer. Super Parfait Series dianthus seeds are an ideal cascading grow to drape from any hanging baskets, planters, and window boxes.