Here’s a simple but effective exercise: Go sit down.
Okay, a couple more details: First, at high noon, go sit somewhere in full sun for a minute or two (you actually don’t have to sit; this exercise can be accomplished standing as well). Now get up and go do the same thing (sit or stand for a minute or two) under a big shade tree. Notice anything different? Feel cooler? Feel a sense of ahhhhhhh? Now that you’re in the shade, maybe you don’t even want to get up!
Ever notice how, in the summer, all of the parking spaces near trees, even if they offer the skimpiest of shade patches, are taken? And how the shady park benches are always full? And so on. I like trees at all times of the year, but I am especially grateful for them in high summer. And particularly for healing gardens, whether public or private, where physical and emotional comfort are paramount, trees are a necessity. Sure, an umbrella or other shade structure can suffice, but they only do one thing, whereas a tree multitasks so nicely. In addition to giving shade, trees provide vertical and seasonal interest, wildlife habitat, and broader environmental benefits.
A few fun tree facts (these from the SavATree website):
- The shade and wind buffering provided by trees reduces annual heating and cooling costs by 2.1 billion dollars.
- One tree can absorb as much carbon in a year as a car produces while driving 26,000 miles.
- A single tree produces ca. 260 lbs of oxygen a year. That means two mature trees can supply enough oxygen annually to support a family of four.
- Over the course of its life, a single tree can absorb one ton of carbon dioxide.
As part of New York City’s Million Trees NYC campaign, posters with pictures of and facts about trees were spread throughout the city, especially in subways. I wasn’t able to get a decent picture of any of them, but here are excerpts from two that seem especially appropriate to the subject of restorative landscapes:
Trees do more than you think. They promote relaxation and fitness, enhance our emotional and mental health, and even encourage us to drive a little slower.
Trees do more than you think. While protecting us from the sun, they encourage outdoor play and exercise – helping in our fight against obesity.
NYC is definitely on to something, and they are putting a lot of money into this effort. This from their website:
Why plant a million trees?
Trees enrich and improve our environment and dramatically increase the overall quality of life in New York City. The benefits provided by trees are numerous and diverse, making it important to quantify their value to our city and its residents. The primary benefits provided by New York City’s urban forest come in three key areas:
- Environmental Benefits: Urban trees help offset climate change, capture rainfall, remove dust and other pollutants from the air, lower summer air temperature, reduce our use of fossil fuels, and provide habitat for wildlife.
- Economic Benefits: Trees provide $5.60 in benefits for every dollar spent on tree planting and care, increase property values, and appeal to community and business investment.
- Health and Lifestyle Benefits: There is growing evidence that trees help reduce air pollutants that can trigger asthma and other respiratory illnesses. Green spaces also encourage physical activity – a healthy habit for any New Yorker.
So if you’re designing you’re own residential garden, or a public park, or a garden for a hospital or nursing home, remember your trees. They are an investment that will give back for generations to come!