Petersen & Tietz Florists & Greenhouses also known as PT Flowers can design tasteful and memorable flowers for a funeral or service as well as sympathy flowers for the home. Casket flowers are typically reserved for the closest family members, often the spouse, children, or siblings of the deceased. Petersen & Tietz Florists & Greenhouses offers funeral and sympathy flower delivery to funeral homes in Waterloo, IA and nationwide.