~SUSTAINABLE LIVING FOR CHALLENGING TIMES

[migo]

something new i just learned.
maybe everyone knew this already.

www.urbanvine.co/june_16/why-purple-led-lighting-is-ideal-for-urban-farming


Why purple LED lighting is ideal for indoor urban farming
The idea that plants need exposure to daylight for perfect growing conditions has persisted during the sustained growth of urban farming in the past half-decade.

But, as numerous researchers (and an increasingly large amount of growers) are starting to realize, the concept of sunlight as a necessity is, in fact, a flat out myth.

Why Purple (a.k.a blue-red) LEDs?

The technical answer, in a nutshell, is related to the spectrum of color present in different types of light. While good 'ol sunlight contains a variety of color spectra (think rainbows), it turns out that plants only need specific color spectra to grow properly.

What colors work best?

According to urban farming research on the way plants respond to light, the blue-red spectra is ideal for plant growth.