Here are the top 7 benefits of plants for employees – and their employers.
Numerous scientific studies have proven the positive effects of having more greenery in your workspace. Humans have an innate desire to be connected with nature, which scientists call ‘biophilia‘. Unfortunately, the spaces we tend to spend most of our days – workplaces – tend to be stripped of much of their connection to the natural environment.
Studies have shown that simply adding some greenery in the form of indoor plants can have major positive benefits for employees and their organizations. The same goes for remote or home workers, too. Here are seven reasons why you should invest in some plants for your own desk, or your wider workplace.
1. Plants Help to Reduce Stress
A 2010 study by University of Technology, Sydney, found significant reductions in stress among workers when plants were introduced to their workspace. Results included a 37% fall in reported tension and anxiety; a 58% drop in depression or dejection; a 44% decrease in anger and hostility; and a 38% reduction in fatigue.
Although the study’s sample size was small, researchers concluded: “This study shows that just one plant per workspace can provide a very large lift to staff spirits, and so promote wellbeing and performance.”
Proponents of color psychology argue that the color green has a relaxing and calming effect – so decorating offices with this shade could potentially have a similar affect to introducing plants to the workspace.
2. Plants Help to Increase Productivity
Employees’ productivity jumps 15% when previously ‘lean’ work environments are filled with just a handful of houseplants, according to 2014 research by the University of Exeter. Adding just one plant per square meter improved memory retention and helped employees score higher on other basic tests, said researcher Dr. Chris Knight.
“What was important was that everybody could see a plant from their desk,” Knight told The Guardian. “If you are working in an environment where there’s something to get you psychologically engaged you are happier and you work better.”
3. Plants Help to Reduce Sickness and Absenteeism
The 2015 Human Spaces report, which studied 7,600 offices workers in 16 countries, found that nearly two-thirds (58%) of workers have no live plants in their work spaces. Those whose environments incorporated natural elements reported a 15% higher well being score and a 6% higher productivity score than employees whose offices didn’t include such elements.
Some experts argue that adding plants to the work environment can help to reduce the risk of sick building syndrome, although evidence to back up these claims is hard to come by.
A small study by the Agricultural University of Norway in the 1990s found that the introduction of plants to one office was linked to a 25% decrease in symptoms of ill health, including fatigue, concentration problems, dry skin and irritation of the nose and eyes.
“The presence of plants can probably result in a positive change in the psycho-social working environment,” commented professor Dr. Trove Fjeld in a 2011 blog post. “The resultant feeling of wellbeing also affects how the individual assesses his/her state of health.
Against the background of the psycho-biological identity and mankind’s positive reaction to nature we can assume that plants have a particular effect on the sense of well-being. This is evidenced by the fact that the occurrence of symptoms linked to the indoor atmosphere was reduced.”
4. Plants Make Work Spaces More Attractive to Job Applicants
Commenting on the 2015 Human Spaces report when it was released, organizational psychology professor Sir Cary Cooper said: “The benefit of design inspired by nature, known as biophilic design, is accumulating evidence at a rapid pace. Looking at a snapshot of global working environments, up to one in five people have no natural elements within their workspace, and alarmingly nearly 50% of workers have no natural light.
Yet a third of us say that workplace design would affect our decision to join a company. There’s a big disparity here and one that hints at workplace design only recently rising to prominence as a crucial factor.”
5. Plants Clean the Air
While humans need oxygen to survive, plants absorb a gas we don’t need – carbon dioxide – and combine it with water and light to produce energy in a process called photosynthesis.
In the 1980s, scientists at NASA discovered that plants were adept at removing chemicals such as benzene, trichloroethylene, and formaldehyde from the air, making it cleaner for humans to breathe.
More recent research led by Dr. Fraser Torpy, director of the University of Technology Sydney Plants and Indoor Environmental Quality Research Group, has found that indoor plants can help reduce carbon dioxide levels by about 10% in air-conditioned offices, and by about 25% in buildings without air conditioning.
“We found palms beat everything else for carbon dioxide,” said Torpy. “But when it comes to volatile organics everything is the same – it doesn’t matter… A medium-sized plant (anything above about 8in) in a room will make really big reductions to those particular chemicals.”
6. Plants Help to Reduce Ambient Noise Levels
By absorbing sounds (rather than insulating against noise pollution), plants help to reduce the distracting effects of background office chatter. Positioning larger plant pots, in multiple locations in the edges and corners of a room has the great positive benefit, according to a 1995 paper by researchers at London South Bank University.
7. Plants Help Boost Creativity
The 2015 Human Spaces report also found that employees whose offices included natural elements scored 15% higher for creativity than those whose offices didn’t include such elements.
Attention restoration theory suggests that looking at nature – and even just images of nature – can shift the brain into a different processing mode, making employees feel more relaxed and better able to concentrate.
So which plants do best in an office environment?
Not all plants will love to live in your workplace – you need to consider restrictions such as the availability of daylight, and how often they can and will be watered. Those that will thrive in workplaces include succulents (which include aloe and cacti), rubber plants and peace lilies.