Horticultural Therapy (HT)  is a new and emerging field. It has it's "roots" in the past including practitioners Hildegard of Bingen -mystic, botanist, herbalist, artist and healer and Dr. Benjamin Rush, signer of the Declaration of Independence who recommended gardening for patients' as well activity as well as many other examples. Today, it is a treatment modality used by professionals alone or in conjunction with allied fields using plants as a medium with written individual treatment goals and objectives  used in a variety of setting with a very diverse clientele.