Top Tips on Keeping a Blue Spruce Tree Blue
![Top Tips on Keeping a Blue Spruce Tree Blue](https://help.gardeningexpress.co.uk/wp-content/uploads/2022/12/My-project-2-edited.png)
The blue colour of blue spruce needles is caused by epicuticular waxes on the needles that reflect specific wavelengths of light
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Top Tips on Keeping a Blue Spruce Tree Blue
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The blue colour of blue spruce needles is caused by epicuticular waxes on the needles that reflect specific wavelengths of light
Top Tips on Keeping a Blue Spruce Tree Blue