This crafty idea is so clever, and the result couldn’t be more beautiful. While the fascinating tie-dye appearance is cool enough on its own, the science behind the color change is interesting, as well.
Many white flowers are able to change color with the help of tinted water due to capillary action. This is a process where liquid is able to move without gravity, or even against it as is the case with these roses. If liquid is in a narrow space, surface tension and cohesion paired with the adhesive forces between the water and the container forces the water upward.
The process of capillary action brings the pigmentation through the stem, as well as the water. When the water reaches the leaves and petals it evaporates but the color does not.
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