Gardening Helps Relieve Stress

by Dr. Joeseph Mercola

Gardening is one of life’s simple pleasures. Even if you don’t have a green thumb, digging in the dirt, planting and nurturing plant life fills a void in many people’s lives. Some call it spiritual while others describe it as therapeutic or stress relieving. Indeed, planting a garden lets you connect with nature in a way that you probably crave, even if you don’t exactly realize it. This is why many people find gardening to be addictive — in a good way. What starts as a few flowerpots on your patio may soon morph into a flower bed or raised vegetable garden. And that’s just part of the fun. The opportunities, and the benefits you may reap, are virtually endless, from harvesting the literal fruits of your labor to creating habitat for pollinators and beyond.

Why Is Gardening Good for You?

Most people start gardening because they have a desire to grow their own food and/or beautify or otherwise alter their landscape (such as planting shrubs for privacy). However, most people continue gardening because the benefits are just too good to pass up. Among them:

1. Stress Relief

A study published in the Journal of Health Psychology tested the stress-relieving effects of gardening among 30 people.1 First they performed a stressful task, then were assigned to either 30 minutes of outdoor gardening or 30 minutes of indoor reading. Levels of the stress hormone cortisol were measured and the participants self-reported their mood. While both gardening and reading led to decreases in cortisol, the decreases were more significant in the gardening group. Further, “positive mood was fully restored after gardening, but further deteriorated during reading.” This suggests that gardening promotes relief from acute stress.

2. Reduce Symptoms of “Attention Fatigue”

It’s suggested that people have a finite capacity for directed attention (the type required for sending emails, making phone calls, etc.). When this capacity gets used up, attention fatigue sets in and you may become irritable, easily distracted and stressed. The symptoms of attention fatigue are similar to those felt by people with attention-deficit hyperactivity disorder (ADHD), except that attention fatigue is considered a temporary condition that can be relieved by ample time for rest. When you immerse yourself in nature, including via gardening, you get to take a break from directed attention and instead engage in “involuntary” or “effortless” attention. This helps to relieve attention fatigue and has been linked to superior attention.2 Researcher Andrea Faber Taylor, Ph.D. in the Landscape and Human Health Laboratory at the University of Illinois at Urbana-Champaign told CNN:3 “The breeze blows, things get dew on them, things flower; the sounds, the smells … All of these draw on that form of attention.”

3. Improve Mental Health and Well-Being

According to a survey by Gardeners’ World magazine, 80 percent of gardeners reported being “happy” and satisfied with their lives compared to 67 percent of non-gardeners.4 Perhaps it’s no coincidence that gardeners are happier. Mycobacterium vaccae is a type of bacteria commonly found in soil. Remarkably, this microbe has been found to “mirror the effect on neurons that drugs like Prozac provide.”5 It helps to stimulate serotonin production, helping to make you feel happier and more relaxed. No wonder so many people describe their garden as their “happy place.” In one animal study, mice that ingested mycobacterium vaccae had a demonstrated reduction in anxiety and improved learning. The researchers noted that natural exposure to microbes may be important for emotional health and behavior:6 “Recent studies show that contact with tolerogenic microbes is important for the proper functioning of immunoregulatory circuits affecting behavior, emotionality and health … Collectively, our results suggest a beneficial effect of naturally delivered, live M. vaccae on anxiety-related behaviors … supporting a positive role for ambient microbes in the immunomodulation of animal behavior.”

4. Benefit Brain Health

A systematic review examined the impact of gardens and outdoor spaces on the mental and physical well-being of people with dementia. The research suggested that garden use, whether it be watering plants, walking through a garden or sitting in one, leads to decreased levels of agitation or anxiety among the patients.7 Spending time in a garden may also help to reduce your

risk of developing dementia in the first place. As reported by CNN:8 “Two separate studies that followed people in their 60s and 70s for up to 16 years found, respectively, that those who gardened regularly had a 36 percent and 47 percent lower risk of dementia than non-gardeners, even when a range of other health factors were taken into account. These findings are hardly definitive, but they suggest that the combination of physical and mental activity involved in gardening may have a positive influence on the mind.”

5. Exercise

Gardening gets you up and moving about, which is beneficial on multiple levels. In fact, gardening can even be a moderate to high-intensity workout, depending on which tasks you do. According to research published in HortTechnology, digging and raking give you a high-intensity workout while the following gardening tasks are akin to a moderateintensity workout:9

•Weeding •Mulching •Hoeing •Sowing seeds •Harvesting •Watering •Mixing growing medium •Planting transplants

Adding to gardening’s allure is the fact that it represents functional exercise. Movements such as pushing, pulling, lifting and digging work multiple muscle groups at a time and keep you adept at the types of movements you need to function on a daily basis. Plus, gardening helps to improve balance, flexibility and sensory perception.

6. Increased Nutrition

The National Garden Association (NGA) estimates that while the average U.S. family spends $70 per year to plant a vegetable garden, they grow about $600 worth of produce — that’s a $530 return on your investment.10 Further, the extra nutrients you’ll gain from eating your harvest of fresh fruits and vegetables is immeasurable in terms of its benefit to your health. Not to mention, people who garden tend to eat more produce in general. According to one study published in the American Journal of Public Health, 56 percent of those who planted a community garden ate fruits and vegetables at least five times a day compared to 25 percent of non-gardeners.11

7. Existential Meaning

Research suggests that gardening goes far beyond the practical purpose of growing plants for food. A study in the Journal of Aging Research even suggested it could have a beneficial impact on the aging process by giving people an intimate connection with life itself. The researchers explained:12 “ … we can propose that gardens and gardening represent multidimensional phenomena in the lives of many older adults and it is much more than a physical activity in a designated space where time and energy are exerted for cultivating fruits and vegetables. Gardens and gardening can also represent an intimate connection with life itself through caring and being a steward for living organisms that also reciprocate with nourishment, aesthetics, and existential meaning in the context of senescence. … the added dimension of environmental connection and awareness into the experience of the aging process could serve as a template for a new “elder culture” and a sustainable future.”

Mercola, J. “A Simple Way to Reduce Stress” Retrieved March 25, 2021, from https://articles.mercola.com/sites/ articles/archive/2016/04/21/gardening-helps-relievestress.aspx

MindBodyGreen April 15, 2015 CNN September 28, 2015 CNN July 8, 2011

1 J Health Psychol. 2011 Jan;16(1):3-11. 2 Am J Public Health. 2004 September; 94(9): 1580–1586. 3 CNN July 8, 2011 4 GardenersWorld.com July 18, 2013 5 The Cornucopia Institute August 8, 2014 6 Behav Processes. 2013 Jun;96:27-35. 7 Journal of the American Medical Directors Association July 15, 2014 8 CNN Health July 8, 2011 9 HortTechnology October 2013 vol. 23 no. 5 589-594 10 National Gardening Association, Home Gardening Infographic 11 Am J Public Health. 2011 Aug;101(8):1466-73. 12 J Aging Res. 2014; 2014: 283682.