If you can’t get enough of those blue and purple shades, there’s no reason you can’t keep the colour going into the evening. Here are my blue-purple floral picks for a pollinator-friendly garden:Ĭatmint Continue the colour into the evening Violet is an extremely popular colour for gardens this year, as ‘Very Peri’ is Pantone’s Colour of the Year 2022 ! But not only is it super chic, it’s also perfect for pollinators. In contrast, bees can’t see red because the wavelengths are too long! However, while bees can’t see red, that doesn’t mean that you shouldn’t have red flowers in your garden if you’re looking to attract bees – it’s just that blue and purple flowers are even more enticing. While many different coloured flowers are nectar-rich, bees will be more attracted to purple and blue-coloured flowers because these have shorter wavelengths, like UV light. Some flowers that are not blue or purple have even evolved to develop a blue halo around their centre to attract bees. Remember, flowers want to be pollinated so that they can survive and produce offspring, so this UV pigment development is no accident. In nectar-rich flowers, there are often pigmented patterns on the petals that absorb UV light and create a ‘guide’ to ferry the bee towards its nectaries. This is where the nectaries usually reside. If you shine a UV lamp over a nectar-rich flower, you’ll find that the centre of the flower appears darker. UV light has the shortest wavelength, which means that it is not visible to the human eye. That’s because UV light, violet light and blue light have the shortest wavelengths of any colour on the spectrum. If you’ve ever seen a UV lamp, you can probably picture it in your mind as a purplish-blue hued light. To us humans, UV light is mostly known for its ability to give us a tan, or to make retro posters glow in the dark, but for bees, UV light plays a crucial role in helping them determine which flowers are the most nectar-rich. Instead, they can see ultraviolet light (UV light), which is invisible to the human eye. Bees don’t see colours in the way that humans can.
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