This is so cool! If you have freshly-cut white flowers and a vase of tonic water, you can make flowers that glow when they're under black light. We'll tell you how.

I never thought I'd say this, but I finally have a tip for wedding planners. Make glow-in-the-dark floral arrangements. Sure, it means bringing black lights into a church — but hey, it's worth it if we get this effect.

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First you need white flowers, and white flowers that are still relatively fresh. Next you need tonic water. Trim the ends of the flower and put it in a vase of tonic water. The flower will suck up the tonic water, transferring the water and its contents into its petals. When the tonic-filled petals get hit with black light, they should glow.

This happens because tonic water contains quinine. Quinine is the extract from the bark of a South American tree. It's bitter, but it came to be mixed in cocktails, or even chewed (in bark form) straight, because quinine is a decent way to treat malaria. Quinine also fluoresces, under the right circumstances. A substance is fluorescent when it absorbs light, and the re-emits the light, giving off a little glow.

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In the case of quinine, it doesn't emit the same color of light it absorbs. When placed under a black light, the quinine absorbs a high-energy UV photon, but re-emits a lower energy, blue photon. Technically, then, it doesn't glow in the dark. It glows in the light. That light it absorbs just happens to be at a frequency we can't pick up.

But never mind the details. It's time to make some glowing flowers! Even if you're not intending to carry a bouquet of glowing white flowers in the best rave-wedding the world has ever seen, you can at least pick up a bunch of carnations and some tonic water, and then hunt down a black light.

Top Image: Sander van der Wel

[Source: How To Make a Glowing Flower, Explore Glow-in-the-Dark Water.]