Space, time, physical work and the colour green… It’s no wonder that gardening feeds both body and soulOver the years, many theories have popped up to attempt to explain why spending time in green space can reduce feelings of stress and anxiety, improve self-image and, in some studies, even measurably reduce the need for pain medication. From their purported ability to clean the air, to allegedly mood-lifting compounds emitted by soil bacteria, to some mysterious effect that simply seeing the colour green has on our brains, let’s look at how the evidence stacks up.Probably the most common claim I see is that plants, particularly houseplants, clean the air. While they do indeed do this on a planetary scale, the latest research now suggests that in indoor spaces the sheer volume you would need to achieve this makes it implausible. Quite how many? Well, several hundred per square metre of living space to achieve the same benefit of simply opening a window. Even I can’t cope with that. Continue reading…
Source : theguardian.com
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