Ornamental Plants, or Plants for the Sake of Plants
Not all of the plant in this field guide are recommended simply because of a physical or environmental benefit they can add to cities. Sometimes plants are used simply because they provide value through beauty, aesthetics, or aroma. While this value is much more subjective and less tangible than those of water remediation or urban cooling, it is no less important and should be considered along with these other values within the urban environment.
But the values offered by beautiful ornamental plants may also have effects on people more than simple appreciation. Anecdotes and studies both show that the presence of plants have positive effects on people’s psychological health and physical well-being. These effects can from passive interaction, as some studies report that people who live by parks are more mentally distressed and are generally more active. These effects can also be from active interaction, as studies show that gardening can reduce depression, anxiety, and increase one’s perceived life satisfaction and quality of life. These effects, along with the aesthetic qualities of plants provide important benefits to the urban environment through the well-being of its people
Above: Autumn foliage is one factor which can provide aesthetic qualities to vegetation in the city (Image courtesy of Curbed)
Sources:
United States Forest Service
(https://www.fs.fed.us/sites/default/files/fs_media/fs_document/urbannatureforhumanhealthandwellbeing_508_01_30_18.pdf)
International Society for Horticulture Science
(https://www.actahort.org/members/showpdf?booknrarnr=391_2)
Preventive Medicine Reports
(https://www.sciencedirect.com/science/article/pii/S2211335516301401)