The neighborhood becomes more attractive.
Urban greenery “doesn’t just beautify the city,” begins an article published in an Italian newspaper last February. And the article isn’t talking about lawns. It specifies that the gardens in question contain trees and bushes, and the feature image depicts drifts of tall grass. Yet the author seems to take it as an uncontroversial fact that these types of plantings are beautiful, listing this virtue of healthy vegetation right alongside “screening out noise” and “filtering pollutants from the air.”
Crime goes down.
The real focus of the article is an experiment in Philadelphia, in which researchers established gardens in small abandoned lots. In the months after the gardens were installed, police records showed that crime in the areas near the gardens decreased markedly, compared to the months before the planting took place. Thefts decreased by 22%, while shootings dropped by 30%.
Some people think that lush plantings create places for criminals to hide, or that they have a neglected look that encourages criminal behavior. But the article specifically contrasts the new gardens with the “broken windows” conditions that contribute to drug dealing, prostitution, and other unsavory activities.
People’s lives are better.
The improvement in public safety was obvious to the residents of the communities that hosted the new gardens. The article reports that people who lived near the plantings felt less fear of moving around the neighborhood, and were able to visit and enjoy the green space in their community. Exposure to green space is known to have a wide variety of positive impacts on human health and well-being, meaning that people living near the gardens received benefits far beyond a reduction in crime.
And these benefits did not come with a steep price tag. The researchers spent only $5 per square meter for the initial installation of the gardens, and $0.50 per square meter for maintenance over the course of the study. Comparing the costs of these urban green spaces to their benefits, the researchers concluded that law enforcement officials and public health workers alike should invest resources in greening our cities.
Given all the benefits that healthy plantings provide, we all should be transitioning our own spaces from low-value turf grass to air-cleaning water-filtering community-beautifying crime-stopping native landscaping. Moreover, we should be demanding that our local authorities do likewise on city-owned property, and that they create rules or incentives to move our reluctant neighbors in the same direction. When thriving vegetation provides so many benefits with so few drawbacks, there’s simply no reason to delay.