SUNSMART COVERS

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Polytunnel covers are no longer just something to keep the rain out and keep the temperature a bit warmer in winter. They should really be called spectrum filters which help you grow a much better plant.

Why compromise?

In the graph to the left, there are 3 lines.
The dark blue jagged line is the actual light spectrum recorded under a forest canopy on a cloudy day.
The green line shows the spectral transmission of a SunMaster SmartGreen.
The blue line shows the spectral transmission of a SunMaster SmartBlue.

You can see that both of them have a curve which more closely matches the curve of the full spectrum films which match the spectrum of a full sun savannah or mountain.

ALL plants grow better in the correct spectrum of light.